Jan 24 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1130 GMT on Tuesday:
** Toshiba Corp's 6502.T board will meet on Friday to approve plans to make its chip business a separate company and hopes to raise more than 200 billion yen ($1.8 billion) by selling a 20 percent stake in it, a person with direct knowledge of the matter said. Australia's new infrastructure oversight body is fuelling concerns Hong Kong's Cheung Kong Infrastructure Holdings' (CKI) $5.5 billion bid for DUET Group will be blocked or modified. Assicurazioni Generali's GASI.MI shares soared on speculation of a bid by Italian banking and insurance rival Intesa Sanpaolo ISP.MI or a deal with another European player. Scandinavian airline SAS SAS.ST said it agreed to sell Danish airline Cimber to CityJet as part of a bid to use partners, so-called wet lease co-operation, in smaller traffic flows and regional traffic. Rio Tinto Plc RIO.AX , RIO.L said it agreed to sell Australian unit Coal & Allied Industries Ltd to Chinese government-controlled Yancoal Australia Ltd YAL.AX for up to $2.45 billion in cash. North Sea-focused oil producer EnQuest ENQ.L has agreed to buy a 25 percent stake in BP 's BP.L Magnus oil field and further interests in the Sullom Voe oil terminal and surrounding infrastructure, the company announced. German vacuum pump maker Busch said it would launch an all-cash offer for Pfeiffer Vacuum PV.DE at 96.20 euros per share, valuing its rival at around 949 million euros ($1.02 billion).