GlaxoSmithKline plc appoints two Non-Executive Directors to its Board (1)

Issued: London UK – LSE Announcement

GlaxoSmithKline plc (GSK) announces that Ms. Judy Lewent and Ms. Stacey Cartwright have been appointed as Non-Executive Directors and will join the Board of the Company with effect from 1^st April 2011. On appointment, they will both become members of GSK’s Audit & Risk Committee.  Ms. Lewent is the former Executive Vice President and Chief Financial Officer of Merck & Co., Inc. and now serves on the boards of three publicly listed companies and Ms. Cartwright is Executive Vice President, Chief Financial Officer of Burberry Group plc.

Commenting on the appointments, Sir Christopher Gent, Chairman of GSK, said:

“I am delighted to welcome Judy and Stacey to the Board of GSK. Their experience of global business and finance, and their respective knowledge of the pharmaceutical industry and consumer brands, will bring a fresh, external perspective to the Board.”

Biographical details of Ms. Lewent and Ms. Cartwright are given below, together with an overview of the membership of the Board with effect from 1^st April 2011.

Victoria Whyte
Company Secretary

Biographical Details

Judy Lewent, (62)

Until September 2007, Ms. Lewent served as Executive Vice President and Chief Financial Officer of Merck & Co., Inc. She served as Chief Financial Officer starting in 1990 and also held various other financial and management positions after joining Merck in 1980. Ms. Lewent is also a director of Dell Inc., Thermo Fisher Scientific Inc. and Motorola Solutions Inc. Additionally Ms. Lewent served on the board of Motorola Inc. from 1995 until May 2010 and previously served on the board of Quaker Oats Company.

Since 2009, Ms. Lewent has served on the Boards of Purdue Pharma Inc., Napp Pharmaceutical Holdings Limited and certain Mundipharma International Limited companies as a Non-Executive Director. Ms. Lewent is also a trustee and the chairperson of the Audit Committee of the Rockefeller Family Trust, a life member of the Massachusetts Institute of Technology Corporation and a member of the American Academy of Arts and Sciences.

Stacey Cartwright, (47)

Ms. Cartwright joined Burberry Group plc as Chief Financial Officer in 2003 and was appointed Executive Vice President, Chief Financial Officer in June 2008. She is also responsible for IT, Legal and Intellectual Property and runs Planning and Pricing for the business. Previously she held the role of Chief Financial Officer at Egg plc between 1999 and 2003, and from 1988 to 1999 she worked in various finance-related positions at Granada Group plc.

Notes

1. The appointments of Ms. Lewent and Ms. Cartwright as Non-Executive Directors have been made by the Board on the recommendation of the Nominations Committee.
2. On appointment, Ms. Lewent and Ms. Cartwright will become members of the Audit & Risk Committee.
3. As Non-Executive Directors of GSK, they will receive standard annual cash retainer fees of £75,000 per annum.
4. The Board has determined that they will be independent Non-Executive Directors, in accordance with the UK Code on Corporate Governance.
5. With effect from 1^st April 2011 the composition of the Board of GlaxoSmithKline plc will be as follows:

GlaxoSmithKline – one of the world’s leading research-based pharmaceutical and healthcare companies – is committed to improving the quality of human life by enabling people to do more, feel better and live longer.  For further information please visit www.gsk.com

Cautionary statement regarding forward-looking statements
Under the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995, GSK cautions investors that any forward-looking statements or projections made by GSK, including those made in this announcement, are subject to risks and uncertainties that may cause actual results to differ materially from those projected. Factors that may affect GSK' s operations are described under 'Risk Factors' in the 'Business Review' in the company' s Annual Report on Form 20-F for 2009.