(Adds Thyssenkrupp, EDP-Energias de Portugal, Asterion, Tyson Foods, Occidental; Updates KCOM, Chevron)
April 24 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Wednesday:
** Thyssenkrupp's supervisory board plans to stress-test the viability of Chief Executive Guido Kerkhoff's plans to break up the steel-to-submarines conglomerate given changed market conditions, two people familiar with the matter told Reuters.
** Shareholders of EDP-Energias de Portugal voted to effectively block a 9 billion euro ($10 billion) takeover bid for the utility announced by China Three Gorges (CTG) almost a year ago.
** Investment fund Asterion is ahead of its competitors to buy the data centre business of Spanish telecoms operator Telefonica, a source with knowledge of the deal told Reuters.
** Tyson Foods Inc said it had sold its 6.5 percent stake in vegan burger maker Beyond Meat, as the No.1 U.S. meat processor looks to develop its own line of alternative protein products.
** Occidental Petroleum Corp started the first takeover battle for a major oil company in years, offering $38 billion for Anadarko Petroleum Corp, a bid that topped a $33 billion offer by Chevron Corp.
** U.S. activist investor Elliott revealed a 1.2 billion euro ($1.3 billion) stake in SAP and said it supported a new management efficiency drive, sending shares in the German business software company to a record high.
** Royal Dutch Shell is in talks to buy BP's stake in the Shearwater oil and gas field in the British North Sea for around $250 million, three industry sources told Reuters.
** ASK Chemicals, a maker or chemicals used in foundries, has been put up for sale by its private equity owner amid a flurry of dealmaking in the chemicals sector, people close to the matter said.
** Allianz and Amundi are considering rival deals to tie up their asset management units with Deutsche Bank's DWS, sources close to the matter said.
** CBS Corp on Tuesday said it had suspended its search for a new chief executive and extended the role of its interim CEO Joseph Ianniello until the end of the year, renewing speculation the U.S. media company will seek to merge with peer Viacom Inc.
** Developer Related Companies said on Tuesday one of its affiliates has agreed to buy the global headquarters of AT&T's WarnerMedia in Manhattan for about $2.2 billion, in one of the city's most expensive commercial real estate deals.
** Japan's Softbank Group Corp will invest around 900 million euros ($1 billion) in Wirecard in a convertible bond deal that could give it a 5.6 percent stake in the German digital payments company.
** French catering company Elior said it had received a firm offer of 1.542 billion euros from private equity firm PAI Partners for its 'Areas' concession catering business, as Elior sells off non-core assets to improve its performance.
** German railway operator Deutsche Bahn has asked potential suitors of its British unit Arriva to express their interest in the asset by May 3, according to an advertisement published in the Financial Times newspaper.
** The Italian government could invest around 145 million euros ($163 million) in equity in any vehicle set up to rescue loss-making airline Alitalia, a government source told Reuters.
** Bulgaria's regulator said it was examining Eurohold to establish its financial situation given its bid to acquire the Bulgarian assets of Czech utility CEZ.
** French construction and transport infrastructure group Eiffage remains interested in opportunities presented by Channel Tunnel operator Getlink, in which it bought a 5 percent stake last December.
** Poland's biggest oil refiner, state-run PKN Orlen , plans to start investment in offshore wind farms in 2024, Chief Executive Daniel Obajtek said.
** State-run Korea National Oil Corp (KNOC) has hired Canada's Scotia Bank to help find a financial partner for a 30 percent stake in its British subsidiary Dana Petroleum, two banking sources said.
** British pension fund Universities Superannuation Scheme Ltd (USSL) said its Humber Bidco unit would buy telecommunication company KCOM for 504 million pounds ($651.42 million), sending KCOM shares soaring more than 30 percent.
Compiled by Manojna Maddipatla in Bengaluru