Rubber, as called “Yang” in Thai, is significantly economic plant of Thailand. Phraya Rasdanupradit Mahissara Phakdi, ruler of Trang province then, initiated the idea of growing rubber plants in Trang. He got the seeding stocks from Malaysia and first planted them in Amphor Kantang, Trang province in 1899. The first rubber tree in Thailand still stands until today with an age of more than 100 years.

And nowadays natural rubber is a kind of main crops that has the influence to the increase of the country’s GDP and is very important to the world’s market as Thailand is the world’s largest producer. The revenues from rubber mainly arise from the production and exporting of raw rubber.