Sept 10 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1030 GMT on Wednesday:

** British mining firm Atlas Metals Group <AMGA.L> said it has entered an agreement to acquire Universal Pozzolanic Silica Alumina Ltd (UPSA) for 1 billion pounds ($1.35 billion). nL3N3UX0EM

** Catastrophe-focused MGU SageSure has agreed to buy Gemini Financial Holdings and subsidiaries including Olympus MGA, expanding and diversifying its presence in the Florida insurance market. nL6N3UX08A

** Elliott Investment Management has built a large stake in BILL Holdings and may want the financial automation software company to pursue a sale, a person familiar with the matter said on Tuesday. nL2N3UW10V

** Magnum CEO Peter ter Kulve dismissed any talk of selling Ben & Jerry's on Wednesday after its co-founders called for the brand to be spun off, adding that the company was focused on reclaiming market share and volume growth as its November listing approaches. nS8N3RL070

** Top global miner BHP's focus on expanding its own copper assets while it undergoes leadership change means it is unlikely to gatecrash the planned $53 billion tie-up of Anglo American AAL.L and Canada's Teck Resources TECKb.TO, investors and bankers said on Wednesday. nL5N3UX019 nL3N3UW0CW

** California-based Inszone Insurance Services has entered the Oregon market with the acquisition of independent agency High Desert Insurance and Group. nL6N3UX0DL

(Compiled by Rajarshi Roy and Anuj T in Bengaluru)

((Anuj.T@thomsonreuters.com))