Malaya ( now Peninsular Malaysia ) was later to become the biggest producer of rubber .
Seedlings were then sent to India , British Ceylon ( Sri Lanka ) , Dutch East Indies ( Indonesia ) , Singapore , and British Malaya .
British Malaya ( now Peninsular Malaysia ) was later to become the biggest producer of rubber .
Seedlings were then sent to India , British Ceylon ( Sri Lanka ) , Dutch East Indies ( Indonesia ) , Singapore , and British Malaya .