China Yunnan Tin Minerals Group Company Limited (CYTMG) (formerly known as Poly Investments Holdings Limited) is a conglomerate listed on the Main Board of the Hong Kong Stock Exchange since 1988 (HKSE Stock Code: 263). Focusing on minerals and related businesses, CYTMG also has investments in securities and retail businesses in Hong Kong and the PRC. CYTMG has a broad shareholders and investors base. In April 2008, the PRC incorporated Yunnan Tin Group (Holding) Co Limited (Yunnan Tin PRC) had subscribed, and exchanged asset, for shares in CYTMG and became one of the Companyˇ¦s substantial shareholders. Yunnan Tin PRC is a major producer of non-ferrous metal products and the worldˇ¦s largest producer of tin and tin products. To reflect the strategic alliance between Yunnan Tin PRC and CYTMG, the Company has adopted its present name since May 2008.