BRIDGEWATER, N.J.--(BUSINESS WIRE)--Cosette Pharmaceuticals, Inc. (Cosette), a U.S.-based, fully integrated pharmaceutical company, confirms that on 9 December 2025 it served a notice on Mayne Pharma Group Limited (Mayne Pharma, ASX: Ticker MYX) terminating the agreement between Cosette and Mayne Pharma under which Cosette was to acquire all the outstanding shares of Mayne Pharma (Scheme Implementation Deed). Cosette also notes the announcements from Mayne Pharma on 10 December 2025 and 11 December 2025 and ...