is a standard joint-venture enterprise incorporated with AMAX  Group of America .It established   in 1992is a standard joint-venture enterprise incorporated  with AMAX Group of America.It established in 1992is a standard joint-venture enterprise  incorporated with AMAX  Group of America .It established in  1992is a standard joint-venture enterprise incorporated  with AMAX Group of America.It  established in 1992is a standard joint-venture enterprise incorporated with AMAX  Group of America .It established in  1992is a standard joint-venture enterprise incorporated  with AMAX Group of America.It established in 1992is a standard joint-venture enterprise incorporated with AMAX  Group of America .It established in  1992is a standard joint-venture enterprise incorporated  with AMAX Group  of  America.It  established in 1992is a standard  joint-venture enterprise  incorporated with AMAX  Group of America .It established in 1992is a standard joint-venture enterprise  incorporated  with AMAX Group of America.It established in 1992