In the FTSE 100, Rio Tinto (LON:RIO) has approved a further US$1.2 billion investment in its drive to lift annual iron ore production capacity in Western Australia's Pilbara region to 283 million tonnes per annum.
Software developer Sage Group (LON:SGE) released its full year results, reporting that revenues were roughly unchanged at £1.44 billion, while pre-tax profits jumped 20% to £319.9 million.
Royal Bank of Scotland (LON:RBS) has completed the sale of its Global Merchant Services business to a consortium of Advent International and Bain Capital following regulatory and other approvals.
In the FTSE 250, tour operator Thomas Cook (LON:TCG) reported audited results for the year to 30 September. Revenue declined 4% to £8.9 billion, while adjusted underlying operating profit fell 6% to £391 million.
On AIM, Synchronica (LON:SYNC) has received a US$975,000 volume expansion order for additional Mobile Gateway licenses from a pan-African mobile operator group.
Medusa Mining (LON:MML) reported that drilling at the Saugon Project's First Hit Vein Prospect has confirmed previous results from 2004 and extended the mineralised gold-silver zones to approximately 200 metres of strike and open along strike and at depth.
Cluff Gold (LON:CLF) announced the results of the interpretation of the airborne versatile time domain electro-magnetic survey for its wholly-owned Baomahun asset in Sierra Leone.
All targets are interpreted as having strikes and dips similar to mineralisation in the existing resource area in which 1.4 million ounces (Moz) of measured and indicated resources, and 1 Moz of inferred resources have been delineated to date.
Deltex Medical Group (LON:DEMG) reported that the successful NHS National Technology Adoption Centre (NTAC) project on oesophageal Doppler monitoring has been recognised in two annual awards processes.
LonZim (LON:LZM) announced that ForgetMeNot Africa Limited, the company's 51% owned subsidiary in the telecoms sector, has signed its sixth agreement with a telecommunications provider in Africa.
Frontier Mining (LON:FML) announced the completion by independent consultant Wardell Armstrong International of a resource estimation in accordance with the guidelines of the JORC Code 2004 on the Benkala copper deposit in Kazakhstan.