Notice of AGM

GlaxoSmithKline plc

(the 'Company')

Publication of 2018 Notice of Annual General Meeting

The Company will today publish on its website, www.gsk.com/en-gb/investors/shareholder-information/annual-general-meeting, the 2018 Notice of Annual General Meeting (the '2018 AGM Notice'), together with the 2017 Annual Summary.

The Company's Annual General Meeting will be held on Thursday 3 May 2018 at 2.30 pm at the QEII Centre, Broad Sanctuary, Westminster, London SW1P 3EE.

The 2018 AGM Notice, together with the 2017 Annual Report and 2017 Annual Summary, will today be sent to those shareholders who have elected to receive paper communications.

In compliance with Listing Rule 9.6.1R of the UK Financial Conduct Authority, the 2018 AGM Notice and 2017 Annual Summary will be submitted to the UK Listing Authority and will, in due course, be available for inspection at www.morningstar.co.uk/uk/NSM. 

V A Whyte

Company Secretary

29 March 2018