SIW's corporate history goes back to about 30 years when its first rubber sheet smoking plant was established in Thungsong district of Nakorn Srithamaraj province. The plant's capacity at the time was about 2000 tons of smoked rubber per month. This plant has since been expanded to the present capacity of 8000 tons per month.SIW has also diverged into the warehousing business with a modern warehouse located in Hatyai for commercial rental. SIW is also involved in the natural latex production and distribution business. The latex is produced in our own factory, which has highly competent personnels in charge. The factory which is located in Trang province have up to 45 Alfa-Laval machines of the latest and most advanced model (LATEX 2000). SIW also has the capability to handle other general products as it has a competent sales force to distribute or source for products as requested by its customers.