N. Thomas Linebarger

N. Thomas Linebarger

Chairman and Chief Executive Officer

Tom Linebarger became Chairman and CEO of Cummins Inc., the largest independent maker of diesel engines and related products in the world, on January 1, 2012. Prior to becoming Chairman and CEO, he served as President and COO from 2008 to 2011, Executive Vice President and President, Power Generation Business from 2003 to 2008, Vice President and Chief Financial Officer from 2000 to 2003, and Vice President, Supply Chain Management from 1998 to 2000.

Tom grew up in California and in 1986 received joint undergraduate degrees in management engineering from Claremont McKenna College and mechanical engineering from Stanford University; He later returned to Stanford University to earn an MS in manufacturing systems from the School of Engineering and an MBA from the Graduate School of Business in 1993.

Prior to joining Cummins, Tom was an investment analyst and investment manager at Prudential Investment Corporation where he lived in both Singapore and Hong Kong. While at Stanford, he worked at Cummins as an intern and spent his summer working on the manufacturing line at the Cummins Midrange Engine plant in Walesboro, Indiana. He liked the values, the people and the business challenges he found at Cummins and decided to join full time in February 1993.

Tom has been on the board of directors of Harley Davidson since 2008. He is also a board member of the Business Roundtable where he serves as Chair of the International Engagement Committee, as well as, a member of the Executive Committee, US-China Business Council, Energy Systems Network and Canvas.

Tom and his wife Michele live in Indianapolis and enjoy traveling to spend time with their adult daughters, Alex and Emily.

Tony Satterthwaite

Tony Satterthwaite

Vice Chairman

Tony is the Vice Chairman of Cummins Inc. He assumed the role in October 2019, succeeding Rich Freeland.

Tony has led two of the company’s business segments. Prior to his current role, he was the President of Cummins’ Distribution Business, which provides unparalleled service, sales and support and a respective support network to customers worldwide, employing approximately 16,000 people.

He managed Cummins Power Generation from 2008 to 2015. Under his leadership, the business segment engineered the power industry’s only full range of large stationary generator sets to meet the U.S. Environmental Protection Agency’s Tier 4 standards, as well as the stricter Tier 4 Final requirements effective in 2015. The business won major new military contracts, expanded the product footprint and invested in new technologies.

Before joining Cummins in 1988, Tony was a General Field Engineer for Schlumberger. He has traveled extensively and lived in Asia, Europe and the US, allowing him to gain a global view of our customers and operations.

Tony holds a master’s in business administration from Stanford University and an undergraduate degree in civil engineering from Cornell University. In addition, he is a graduate of the first Cummins Executive Leadership Development program.

Outside of Cummins, Tony is a Director of IDEX Corporation (NYSE: IEX) where he chairs the Compensation Committee and is a member of the Nominating and Corporate Governance Committee. He is part of the Cornell Engineering Advisory Council, a group that advises the Dean of the Engineering College. Tony and his wife live in downtown Indianapolis.

Jennifer Rumsey

Jennifer Rumsey

President and Chief Operating Officer

Jennifer Rumsey is President and Chief Operating Officer of Cummins Inc. She assumed the role in March 2021, succeeding Tony Satterthwaite.

Prior to her current role, Rumsey was Vice President and President of Components Segment, one of Cummins’ five business segments. The Components Segment consists of five businesses: Cummins Filtration, Cummins Turbo Technologies, Cummins Emission Solutions, Cummins Electronics and Fuel Systems and Eaton Cummins Automated Transmission Technologies. As the President of Components, Rumsey oversaw an organization of more than 12,000 global employees with sales of $6 billion in 2020 and customers located around the world.

Rumsey previously served as Vice President and Chief Technical Officer where she led the global technical organization of approximately 11,000 employees responsible for research and engineering across Cummins. Rumsey’s early career focused on control systems and system engineering; initially at a fuel processing and fuel cell start-up company in Cambridge, MA. In 2000, she moved to Cummins and has worked in a variety of engineering roles across Cummins and product life cycle areas including advanced technology development, new product development, current product engineering and product quality.

Rumsey is passionate about building high-performing, diverse teams and has dedicated her Cummins career to the development of others and to innovate for customers to power their success.

Rumsey is a member of the Society of Women Engineers, Society of Automotive Engineers, the Purdue Engineering Advisory Committee and Women in Trucking Association. She holds a Bachelor of Science in Mechanical Engineering from Purdue University and a Master of Science in Mechanical Engineering from Massachusetts Institute of Technology.

Sherry Aaholm

Sherry Aaholm

Chief Digital Officer

Sherry Aaholm is currently the Chief Digital Officer of Cummins Inc. Aaholm joined Cummins in 2013 after more than 15 years at FedEx Services. She served as the Executive Vice President of Information Technology at FedEx, where she drove the IT transformation strategy for the global enterprise.

At Cummins, Sherry is responsible for IT transformation strategy, digital innovation, connected products and daily operations of the global infrastructure footprint. This work includes executive leadership of the global strategy of the IT Operating Team; the Digital Accelerator, which leverages the latest technologies to design and launch connected solutions for global customers; and Advanced Analytics, which uses statistic, machine learning and artificial intelligence to identify challenges and opportunities for customers.

Sherry attended the University of Wisconsin and received her Bachelor’s in Business Administration with majors in Marketing and Economics. She recently was awarded a Master’s of Science in Sustainability from the University of Wisconsin, Green Bay. She has also attended the University of Chicago Graduate School of Business, where she studied Finance for Executives and Strategic Business Leadership.

Sherry is a strong advocate for helping to develop the next generation of talent, and for encouraging women to develop careers in IT. Her work in developing leadership programs has been recognized by Computerworld, and she has spoken at Gartner and Computerworld events on the subject. In addition, she believes strongly in helping women to achieve their goals, and was involved in the Women’s Foundation for a Greater Memphis, which focuses on helping single mothers get an education and support to succeed.

She is currently championing iDEW (Informatics Diversity-Enhanced Workforce), a program that partners with the Indiana University School of Computing and Informatics at IUPUI, business partners and several Indianapolis area high schools to identify and build an IT talent pipeline through project-based learning while students are in high school in the Indianapolis metropolitan area.

She has been awarded the CIO “Ones to Watch” and Computerworld’s “CIO 100” List.

Sherry is married, has a daughter and lives in Indianapolis, Ind.

Peter Anderson

Peter Anderson

Vice President, Global Supply Chain & Manufacturing, Cummins Inc.

Peter Anderson is the Vice President of Global Supply Chain for Cummins Inc. Peter began his career at Cummins in February 2017. In this role, he leads the supply chain organization, which includes over 5,000 employees across Purchasing, Quality, Manufacturing, Analytics, Central Supply Chain Operations, Remanufacturing and Business Process Transformation teams. Cummins Supply Chain transformation is critical to Cummins success and Peter’s 30 years’ experience in supply chain manufacturing, operational and consulting roles will be invaluable to Cummins future success.

Prior to joining Cummins, Peter worked for 10 years at Ernst & Young (EY). There he formed the global Supply Chain Practice and worked his way to Partner. While at EY he consulted with Cummins and other global companies to develop their supply chain strategies. His experience before EY includes Operations Director & Managing Director at Milk Industry Logistics; Operations Director at Bibby Distribution, a Third Party Logistics provider; and consultant at IBM Consulting (formerly PWC Consulting). While at IBM, he led the Supply Chain Transformation practice while holding a number of operational interim leadership roles in the industry while providing consulting support.

A native of the United Kingdom, Peter earned his MBA from Strathclyde Graduate Business School in 1998 and a BSc degree in Transport and Distribution from Huddersfield Polytechnic University in 1991.

Sharon Barner

Sharon Barner

Vice President, Chief Administrative Officer, and Corporate Secretary

Sharon Barner is Vice President, Chief Administrative Officer, and Corporate Secretary for Cummins Inc., where she is responsible for worldwide legal matters and oversees a team of lawyers, paralegals and other professionals.

With more than 30 years of experience in the legal profession, Sharon primarily specializes in intellectual property law. Prior to joining Cummins, she served as Deputy Under Secretary of Commerce for Intellectual Property and Deputy Director of the United States Patent and Trademark Office (USPTO). During the two years she spent in that role, Sharon led 15 foreign missions to meet with government representatives, as well as leaders in academia and industry to raise awareness about the impact of intellectual property on business and innovation.

She has spent the majority of her career in private practice, most recently at the law firm of Foley & Lardner in Chicago, where she led the firm’s Intellectual Property Department, a team of more than 200 intellectual property lawyers.

Sharon received the 2013 American Inns of Court Professionalism award for the 7th Circuit and the 2011 Women of Vision award from the Women’s Bar Association of Illinois. She was named one of the 50 Most Influential Minority Lawyers in America by the National Law Journal in 2008 and an Illinois “Super Lawyer” by Law & Politics Media Inc. (2005-2011) for her intellectual property litigation work.

She is a graduate of Syracuse University where she earned a bachelor’s degree in psychology and went on to receive a law degree from the University of Michigan Law School.

John Brockhaus

Vice President, Human Resources Operations

Brockhaus has over 20 years experience in a variety of Human Resource (HR) roles at Cummins and has been integral in creating HR processes that serve as the foundation for how employees experience Cummins. Brockhaus has led efforts to connect HR strategy, technology and functional excellence, which is critical to employee retention and development. Brockhaus joined Cummins in 1997 as an intern. He began working full-time in 1998 and has worked in a variety of positions across the HR organization at Cummins during his career.

Jill Cook

Jill Cook

Vice President and Chief Human Resources Officer

Jill Cook is the Chief Human Resources Officer for Cummins Inc., overseeing the leadership development, recruiting, compensation, benefits and human resources strategy for more than 50,000 Cummins employees and contractors throughout the world. Cook joined Cummins in 1988 as a Labor Relations Representative. She has since held leadership roles within the human resources function, including Human Resources Director for several Cummins sites and business functions.

Prior to joining Cummins, Cook was employed by General Motors as a Labor Relations Representative and Production Manager.

Cook serves on a number of national boards and committees, including the National Association of Manufacturers Human Resource Policy Committee, the U.S. Chamber of Commerce Employee Benefits Committee, the Purdue University Organizational Leadership and Supervision Advisory Council.

She graduated from Purdue University where she earned a Bachelor of Science in Organizational Leadership. Cook was recognized by the institution as the 2007 Distinguished Alumni in Organizational Leadership and was named a 2010 Old Master for making a positive impact on society and achieving personal and professional success.

Amy Davis

Amy Davis

President and Vice President, New Power

Amy Davis is Vice President and President – New Power Segment at Cummins Inc. (NYSE: CMI). As the company’s fifth and newest business segment, New Power designs and manufactures new and emerging alternative power sources, including electrified power, fuel cell and hydrogen technologies. In this role, Amy sets and implements the strategy for the New Power segment, enabling her team to build Cummins reputation as a leading provider of electrified and hydrogen fuel cell power in commercial markets.

Beginning her career nearly 30 years ago, Amy joined Cummins in 1994 and has extensive leadership experiences across Cummins’ five business segments. Prior to her current role in New Power, Amy served in Cummins Components Business as the Vice President and General Manager of Cummins Filtration, which is a world leader in OEM and aftermarket filtration solutions for diesel engines, transmissions and industrial applications. In addition, Amy has served in Cummins’ Engine Business in its Sales and Marketing Field Sales, OEM Sales, and Market Communications and Strategy. In addition, she led the Mid-Range North American On-Highway Engine Development programs and served as Executive Director – Medium Duty Truck and Bus. Within Cummins’ Distribution Business, Amy led as its President – Cummins Northeast, a Cummins Joint Venture distributor.

Outside of her Cummins experiences, early in her career Amy held positions at the AT&T Corporation and more recently in her career history worked at Alcan Corporation, serving as their Vice President - Sales in the Global Aerospace and Transportation Business.

Amy has led various Cummins initiatives to support corporate responsibility, diversity and inclusion and is especially passionate about encouraging and growing female leaders in the work place. She sponsored local community work in Nashville, Tennessee and sponsored Cummins’ first Technology Enhanced Classroom (TEC) initiative developed in Turkey, which partnered with local school and regional corporations to create curriculum for students to enter the technical workforce.

Amy is a graduate of Northwestern University and attended the University of Chicago Booth Executive program for Market Strategy. Enjoying boating, water skiing and writing in her free-time, Amy and her husband Dan of 28 years live in Indianapolis and have four children.

Tracy Embree

Tracy Embree

President, Distribution Business Segment

Tracy Embree is the President of Cummins’ Distribution Business Segment. With approximately 16,000 employees worldwide, Tracy sets the strategy and direction for the segment, focusing on critical opportunities that will continue to enhance the sales, service and support experience for Cummins’ customers and certified dealers globally.

Beginning her career at Cummins in 2000, Tracy has extensive cross-functional and cross-business unit experience. Prior to leading the Distribution Business, she led the Components Segment. Tracy also served as President of Cummins Turbo Technologies and worked in the Midrange Engine Business where she was responsible for the on-highway line of the business.

In addition, Tracy has held marketing and sales positions in the Emission Solutions and Filtration Businesses and served as Executive Director of the Chrysler business. She also spent two years in the Power Generation Business as General Manager for the Energy Solutions Business based in Kent, U.K.

Tracy graduated from the Massachusetts Institute of Technology (MIT) with a bachelor’s degree in chemical engineering and holds an MBA from Harvard Business School.

Commitment to the community is a passion of Tracy’s, reflected in her service on the Board of the Cummins Foundation. She is also an active participant in the Cummins Women’s Affinity Group, spending significant time in personal and small group mentoring activities. In addition, Tracy serves as a Board member for the Louisiana-Pacific Corporation (NYSE: LPX).

Mary Chandler

Vice President, Community Relations and Corporate Responsibility

Thad Ewald

Thad Ewald

Vice President, Corporate Strategy, Cummins Inc.

Thad Ewald is the Vice President of Corporate Strategy for Cummins. In this role, Thad oversees cross-functional efforts to define and develop the company’s strategic direction globally, including business development, partnerships, mergers, acquisitions and divestitures. He also leads the company’s fifth and newest business segment, Electrified Power, positioning Cummins to be the leading provider of electrified and hydrogen fuel cell power in commercial markets.

Prior to his current role, Thad served as the Executive Director of Corporate Strategy and the Cummins Growth Office. He joined Cummins in 2001 as the Director of Marketing - Americas for the Power Generation Business. From 2002 through early 2008, he was the General Manager and Executive Director of the Power Electronics Business and was a member of the Power Generation Business leadership team.

While leading the Power Electronics Business he also served as the Managing Director of SEG, a Cummins subsidiary in Germany, restructuring and then divesting it in late 2006. In early 2007, he took on the additional responsibility of leading global purchasing for the Power Generation Business.

Thad came to Cummins after holding engineering, marketing, sales, strategy and management positions with Emerson Electric Company, Goodrich Inc. and Zexel.

He earned a Bachelor of Science in Mechanical Engineering from Ohio University and a Masters of Business Administration from the Kelley School of Business at Indiana University.

Jim Fier

Jim Fier

Vice President and Chief Technical Officer

Jim Fier is Vice President and Chief Technical Officer at Cummins. Fier is passionate about building teams with a commitment to deliver quality products. In his role as CTO, Fier leads the global technical organization of approximately 11,000 employees responsible for research and engineering across Cummins.

Fier has spent his entire career at Cummins, gaining broad technical knowledge and leadership experience while accelerating the development and launch of the company’s market-leading engine platforms and innovations. Most recently, he served as Vice President of Engineering - Engine Business Unit. He was responsible for the teams that supported current products, as well as new product development for Cummins’ product lines from 2.8L through 15L.

Fier began his career with Cummins in 1986 after earning his Bachelor of Science in Agricultural Engineering from North Dakota State University. At Cummins, he is the sponsor for the Leading Inclusion for Technical (LIFT) initiative as well as the Cummins Millennial Employee Resource Group (MERG). Fier has served as a board member for several of Cummins’ joint ventures in Europe, India, and China. He is a member of the Society of Automotive Engineers. He received the Cummins’ Dr. Julius P. Perr Innovation Award for work on the patented system to control regeneration of exhaust aftertreatment components.

Residing in Columbus, Fier lives with his wife M’Liss and has been active in the community serving as a member of the Columbus Regional Hospital Foundation board, youth coach, and community volunteer.

Melina Kennedy

Melina Kennedy

Vice President, Product Compliance and Regulatory Affairs

Melina Kennedy is Vice President – Product Compliance and Regulatory Affairs at Cummins Inc. Under Kennedy’s leadership, the Product Compliance and Regulatory Affairs organization focuses on strengthening Cummins’ collaboration with the environmental agencies that set emissions regulations and certification processes to ensure continued compliance with increasingly challenging global emissions regulations. Prior to this role, Melina was General Manager of the Pickup Truck Business at Cummins and also led the Rail and Defense Businesses at Cummins.

Before Cummins, Melina was a partner at the law firm of Baker & Daniels, where she managed the firm’s energy, environment and climate change practice group. Prior to joining Baker & Daniels, Melina served as director of economic development and deputy mayor for Indianapolis Mayor Bart Peterson.

Melina received her B.A. in Environmental Studies and History (1991), her M.S. in Environmental Science (1995) and her J.D. from Indiana University, Bloomington (1995).

She lives with her husband, Tim Broecker, in Indianapolis. She enjoys watching her 14-year-old twins’ sporting events and is also active in her community as President of the Capital Improvement Board, a member of the 2021 NBA All Star Committee and on the Impact 100 Board of Directors.

Nicole Lamb-Hale

Vice President, General Counsel

Mahesh Narang

Mahesh Narang

Vice President and President of Components

Mahesh Narang is Vice President and President of Components, one of Cummins’ five business segments. He assumed the role in March 2021 after serving as Vice President and General Manager of Cummins Emission Solutions. The Components Segment consists of five businesses: Cummins Filtration, Cummins Turbo Technologies, Cummins Emission Solutions, Cummins Electronics and Fuel Systems and Eaton Cummins Automated Transmission Technologies.

In his over 20 years at Cummins, Narang has held various leadership positions while remaining committed to Cummins and the success of our employees and customers.

Prior to his current role, Narang led Cummins Emission Solutions, a global leader in designing, manufacturing and integrating exhaust aftertreatment solutions to meet the highest emissions standards worldwide. As the General Manager of Cummins Emission Solutions, Narang oversaw an organization of more than 2,200 global employees with customers located around the world.

Narang previously served as Vice President and General Manager of Cummins Turbo Technologies, another business unit within the Components Segment. Cummins Turbo Technologies is a long-time leader in the industry with more than 60 years of turbo experience.

Narang’s earlier career at Cummins provided him many opportunities to work within different business segments and across regions in operations, marketing and general management, including his role as Chief Operating Officer for the India Area Business Organization.

Narang holds a Bachelor's degree in Engineering from Mumbai University and a Master of Business Administration from Northwestern University.

Earl Newsome

Earl Newsome

Vice President and Chief Information Officer

Earl Newsome is Vice President and Chief Information Officer of Cummins Inc. He assumed the role in April 2021, succeeding Sherry Aaholm.

Newsome came to Cummins after five years at Linde, a global industrial gases company, leading the organization as the Americas IT CIO where he served as a trusted advisor and business partner on IT.

Newsome is a skilled strategic leader with over 30 years of global IT leadership experience and a strong vision for leading IT and digital transformations for global companies.

Newsome began his career serving in the U.S. Army after graduating from the United States Military Academy in West Point, New York, with a bachelor’s degree in Computer Science. Following his military service, Newsome has dedicated his career to leading IT development and initiatives across several industries, including his time as Vice President of Global Shared Services and Chief Technology Officer at The Estée Lauder Companies Inc. Newsome also led IT transformations and digital innovation for core business growth at TE Connectivity as the Corporate Chief Information Officer and Vice President, Digital.

Beyond his vast experience in IT, Newsome is passionate around increasing employee engagement through development and growth is a key element of our leadership behaviors.

Newsome is actively involved in several leadership organizations, including the Executive Leadership Council, the Information Technology Senior Management Forum and the West Point Association of Graduates. He also serves on the board of directors, Beacon (BECN), and board of directors, NaviSite.

Norbert Nusterer

Norbert Nusterer

Vice President, Cummins Inc. • President, Power Systems Business

Norbert Nusterer is Vice President, Cummins Inc. and President of the Power Systems business, which comprises power generation products, large industrial engines and aftermarket activities associated with both.

Most recently, Norbert served as Vice President of Supply Chain Operations and Parts, where he drove a comprehensive integration of Cummins’ global supply chain activities. Under his leadership, Norbert and his team doubled the size of Cummins’ service parts and remanufacturing businesses and transformed them into a global shared service organization supporting all four Cummins businesses.

Since joining Cummins in 1996, Norbert has contributed to the company in multiple leadership roles, spanning areas such as inventory management, purchasing, global logistics and manufacturing. These positions included global responsibilities for and collaboration with OEM customers, Cummins global distributors and multiple key suppliers. From 2001-2004 Norbert was the Plant Manager at SEG GmbH in Germany, a former Cummins subsidiary.

A native of Austria, he holds a bachelor’s degree in business administration from Vienna University of Economics and an MBA from the University of Michigan in Ann Arbor. Norbert is a board member of Cummins India Limited in Pune.

​Srikanth Padmanabhan

​Srikanth Padmanabhan

Vice President, Cummins Inc. • President, Engine Business

Srikanth Padmanabhan is President of the Engine Business, the largest of Cummins’ four business segments. In this role, he pushes the boundaries of customer-focused innovation to position Cummins as the leading powertrain supplier of choice, with its portfolio ranging from diesel and natural gas to hybrid and electric powertrains. In 2017, Srikanth and the team successfully drove the nearly $9-billion business to achieve profitable revenue growth and manufacture more than 1.3 million engines globally.

In his more than 25 years at Cummins, Srikanth has been passionate about bringing quality, innovative and energy-efficient products to life for customers, ensuring they have the right strategy and technologies to power their line of work. He has led a number of businesses across the company, including Vice President of the heavy duty, midrange and light duty markets, President of Cummins Emission Solutions, Managing Director of Cummins Generator Technologies based in Stamford, England, Country Manager of Cummins Filtration Mexico, and various leadership roles in Cummins Fuel Systems. As a diverse global leader, he has lived and worked in India, United States, Mexico and the United Kingdom.

Srikanth holds a bachelor’s degree in Mechanical Engineering from the National Institute of Technology in Trichy, India and a PhD in Mechanical Engineering from Iowa State University in Ames, Iowa. He is also a graduate of the Advanced Management Program from Harvard Business School.

Srikanth is a board member on the Community Education Coalition in Columbus, Indiana, as well as a member of the board of advisors for Indiana University-Purdue University Columbus.

Srikanth, his wife Usha and their daughter Megna live in Columbus, Indiana.

Mark Smith

Mark Smith

Vice President and Chief Financial Officer, Cummins Inc.

Mark Smith is the Vice President and Chief Financial Officer, Cummins Inc. In this role, he oversees the operations of Cummins’ business from a finance perspective and works with finance controllers to ensure that the company meets its operational and financial commitments. In addition, Mark also leads the Investor Relations, Business Planning and Analysis, and Capital Management functions at Cummins.

Mark joined Cummins in 1995. In his more than 20-year tenure, he has served in a number of leadership positions including Vice President of Investor Relations, Controller for the Components business and Controller for the Filtration business. In addition, Mark also served in a number finance and business strategy roles in the Engine and Power Generation businesses in the U.S. and the U.K.

Mark earned a Bachelor of Arts in Economics from the University of Kent and a Master of Business Administration from the Kellogg School of Management at Northwestern University. Prior to joining Cummins, Mark spent six years as a public accountant with Ernst & Young in the U.K. Mark is a qualified member of the Institute of Chartered Accountants in England and Wales.

Nathan Stoner

Nathan Stoner

Vice President, China ABO

Nathan Stoner is Vice President – China ABO, with regional responsibility across Cummins’ business portfolio in China - including Engine, Components, Power Systems, Distribution, and New Power business units.

Prior to his current role, Nathan served as General Manager of Engine JVs & Partnerships, General Manager of Power Systems China, Executive Director of Global Corporate Development and the Partnership Director of Dongfeng Motors. Prior to working at Cummins, Nathan worked in a variety of entrepreneurial, general management, UX/UI designer roles. He was the founder and General Manager of Sino Universal Ltd., a design and manufacturing firm located in China, setting up and overseeing all aspects of the company’s production business and facilities.

He currently serves and has served on the Board of Directors of ten Joint Venture companies and is also the Chairman of the Board of Trustees for Education for Ethiopia, an EdTech not-for-profit organization.

Nathan grew up in England and moved to the US when he was 16. Since graduating from university, he has lived and worked in San Francisco, New Haven, London, Addis Ababa, and several cities in China. Nathan received his bachelor’s degrees in Architecture and Mechanical Engineering from Yale University and his MBA from Yale School of Management. Nathan and his wife Lina, and daughter Maya live in Beijing.