Glaxosmsc 5.25% Regulatory News (AG99)

Publication of Final Terms

The following final terms dated 14 December 2012 (the "Final Terms") in respect of the Notes (as defined below) are available for viewing:

GlaxoSmithKline Capital plc issue of:

£600,000,000 3.375 per cent. Notes due 2027; and

£800,000,000 4.250 per cent. Notes due 2045,

in each case guaranteed by GlaxoSmithKline plc and issued under the £15,000,000,000 Euro Medium Term Note Programme (the "Notes").

To view the Final Terms in full, please paste the following URLs into the address bar of your browser.

Copies of the Final Terms have been submitted to the National Storage Mechanism and will shortly be available for viewing at:

http://www.morningstar.co.uk/uk/NSM.

For further information, please contact:

GlaxoSmithKline plc

980 Great West Road

Brentford

Middlesex

TW8 9GS

United Kingdom

Enquiries:

BASIS ON WHICH YOU MAY ACCESS THE FINAL TERMS AND BASE PROSPECTUS

Please note that the information contained in the Final Terms and the Base Prospectus may be addressed to and/or targeted at persons who are residents of particular countries (specified in the Base Prospectus) only and is not intended for use and should not be relied upon by any person outside these countries and/or to whom the offer contained in the Final Terms is not addressed. Prior to relying on the information contained in the Final Terms or the Base Prospectus you must ascertain from the Base Prospectus whether or not you are part of the intended addressees of the information contained therein.

Your right to access this service is conditional upon complying with the above requirements.