(Adds AT&T, Amazon)
Sept 20 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Thursday:
** AT&T Inc asked a federal appeals court to reject the Justice Department's challenge to its acquisition of Time Warner, saying the government had offered no basis for second guessing key conclusions of a ruling upholding the transaction.
** Amazon and Indian private equity firm Samara Capital are making a joint investment that will give the online retail giant a stake in Indian supermarket chain More, the U.S. company said.
** Nestle put its skin health unit up for sale, as the maker of Nescafe and Perrier water ditches underperforming businesses and fends off criticism from an activist investor demanding an overhaul.
** A protracted $34 billion bidding war for European broadcaster Sky between U.S. rivals Comcast and Twenty-First Century Fox could be settled by a quick-fire auction, UK regulators said.
** North African-focused oil and gas company SDX Energy confirmed that it was in discussions with BP Plc to buy a package of assets in Egypt.
** Thyssenkrupp's interim chief executive dismissed speculation that it would pull out of its steel joint venture with India's Tata Steel in the wake of management upheaval at the German industrial conglomerate.
** Agricultural group InVivo is in talks to buy a chain of organic food stores in southern France, part of a plan to expand its retail business which is currently based on gardening stores.
** Privately owned investment firm JAB Holding Co, best known for stirring up the coffee industry with a string of deals, sees huge opportunities for acquisitions in the market for non-alcoholic beverages, one of its senior partners said in an interview with Germany's Manager Magazine.
** Africa-focused private equity firm DPI has bought a majority stake in Moroccan irrigation company Compagnie Marocaine de Goutte à goutte et de Pompage (CMGP) for around $100 million, it said in a statement.
** Total has expanded its footprint in the French electricity market with the completion of its takeover of alternative power supplier Direct Energie, and the acquisition of an electric vehicle charging solutions provider.
** Spain's Santander is participating in a bid for its own headquarters in Spain, a source close to the bank said, after it sold the building in 2008 for 1.9 billion euros ($2.22 billion) in a 40-year sale-to-leaseback deal.
** Hanon Systems, a South Korean auto parts maker, said that it plans to buy Magna International's Fluid Pressure & Controls Group, an auto electronics business, for about $1.23 billion.
** Two Samsung Group affiliates said they are selling their entire stakes worth a combined $867 million in Samsung's de facto holding company, as South Korea's biggest conglomerate faces government pressure to unwind group cross-shareholdings.
** Dominion Energy said it had offered to buy the rest of Dominion Energy Midstream Partners in an all-stock deal, valuing the company at about $2.2 billion. (Compiled by Karan Nagarkatti and Bharath Manjesh in Bengaluru)