The Second Battle of Chuenpi was fought between British and Chinese forces in the Pearl River Delta, Guangdong province, China, on 7 January 1841 during the First Opium War. The British launched an amphibious attack at the Humen strait (Bogue), capturing the forts on the islands of Chuenpi and Taikoktow. Subsequent negotiations between British Plenipotentiary Charles Elliot and Chinese Imperial Commissioner Qishan resulted in the Convention of Chuenpi on 20 January. As one of the terms of the agreement, Elliot announced the cession of Hong Kong Island to the British Empire, after which the British took formal possession of the island on 26 January.