(Adds company news items and futures)
July 23 (Reuters) - Britain's FTSE 100 index is seen opening 38 points lower at 7,641 on Monday, according to financial bookmakers, with futures down 0.39 percent ahead of the cash market open.
* IWG: Prime Opportunities Investment, one of the four groups in the running to take over IWG Plc, does not intend to make an offer for the London-listed serviced office provider, the investment firm said on Monday.
* PETRA DIAMONDS: Miner Petra Diamonds Ltd reported a 20.8 percent rise in full-year revenue on Monday, helped by higher diamond prices and production.
* MCCOLL'S: British convenience retailer McColl's on Monday posted a 2.7 percent drop in like-for-like sales for the first half, as supplies were hit after the collapse of UK cigarette wholesaler Palmer & Harvey (P&H) last year.
* RYANAIR: Ryanair on Monday said it expected Austrian holiday airline Laudamotion, which it agreed to buy earlier this year, to post annual losses of 150 million euros ($176 million), up from an earlier estimate of 100 million.
* BHP: Global miner BHP said on Monday it has been served with a class action proceeding in the Federal Court of Australia regarding the 2015 Samarco dam failure in Brazil.
* GSK: GlaxoSmithKline Plc is considering a break-up of the group after investors pressed the company's board to spin off its consumer division, the Financial Times reported on Friday.
* RYANAIR: Ryanair on Monday warned that average fares would be lower than expected during its key summer period due to high competition, unusually hot weather in Northern Europe and uncertainty caused by a series of strikes.
* AIRBUS-BAE SYSTEMS: The chief executive of Airbus said he was open to a merger of his firm's jet fighter business with that of BAE Systems , the Sunday Times reported.
* WPP: Chinese conglomerates Alibaba and Tencent are involved in talks to buy a minority stake in advertising giant WPP's Chinese unit, Sky News reported on Saturday, citing unidentified sources.
* IWG: London-listed serviced office provider IWG has given three of its four suitors more time to make firm offers or walk away from bids for the company, the firm said on Saturday.
* GOLD: Gold prices were steady on Monday near their highest since July 17 as the dollar eased to its lowest in nearly two weeks after U.S. President Donald Trump criticised the Federal Reserve's interest rate tightening policy.
* OIL: Oil prices fell on Monday because of increasing concerns about fuel demand after finance ministers and central bank governors from the G20 warned that global economic growth risks have increased amid rising trade and geopolitical tensions.
* The UK blue chip FTSE 100 index ended down 0.07 percent at 7,678.79 points on Friday, slightly outperforming a broadly negative European market, as global trade uncertainty and political troubles closer to home spurred demand for defensive stocks and earnings filtered through.
* For more on the factors affecting European stocks, please click on: cpurl://apps.cp./cms/?pageId=livemarkets
> Financial Times
> Other business headlines (Reporting by Siju Varghese)