text:  The <unk> <unk> <unk> plant is the <unk> ammonia and <unk> plant operated by <unk> <unk> <unk> <unk> <unk> ( <unk> ) , which is partly owned by <unk> . The company was formed on 6 December 1980 . The plant started operation on 1 October 1985 . It is also one of the largest <unk> <unk> plants in Asia . It is a joint venture by five <unk> countries : Malaysia ( 63 @.@ 5 % shares ) , Thailand ( 13 % ) , Indonesia ( 13 % ) , the Philippines ( 9 @.@ 5 % ) , and Singapore ( 1 % ) . 
  