What Natural Rubber Grades Are Common in Each Producing Country?

Grade Reference by Country

Thailand (roughly 4.8–4.9 million tonnes): the world's largest producer with a mature export system; common grades include STR20, STR10, RSS ribbed smoked sheet, and latex.

Indonesia (roughly 2.0–2.3 million tonnes): a high smallholder share, with output affected by tree age and replanting; common grades include SIR20 and SIR10.

Côte d'Ivoire (roughly 1.8 million tonnes): one of the fastest-growing sources in West Africa; common grades include TSR10 and TSR20.

Vietnam (roughly 1.25–1.30 million tonnes): closely integrated with the China trade, offering a complete 3L, CV, and TSR range; common grades include SVR3L, SVR CV60, SVR10, and SVR20.

China (about 973,000 tonnes in 2025): production concentrated in Yunnan, Hainan, and Guangdong, with strong strategic-resource attributes; common grades include SCR WF whole field latex, SCR10, and concentrated latex.

India (roughly 850,000–900,000 tonnes): strong domestic tire demand with notable import supplementation; common grades include RSS4 and ISNR20.

Malaysia (roughly 350,000–400,000 tonnes): output has fallen from historical peaks, but its influence on standards and pricing remains strong; common grades include SMR20, SMR CV60, SMR L, and latex.

What the Letters Mean

Most prefixes come from national standard-rubber systems: STR = Standard Thai Rubber, SIR = Standard Indonesian Rubber, SVR = Standard Vietnamese Rubber, SMR = Standard Malaysian Rubber, SCR = Standard China Rubber, ISNR = Indian Standard Natural Rubber; TSR is the umbrella term for Technically Specified Rubber.

RSS denotes Ribbed Smoked Sheet, graded by appearance (e.g., RSS3, RSS4); CV denotes Constant Viscosity (e.g., SVR CV60); L generally indicates latex; WF indicates whole field latex. The numbers in a grade (10, 20, 60, etc.) correspond to dirt, Mooney viscosity, and related grading parameters; see the article on grade prefixes and numbers for details.

Practical Notes

Production figures above are rounded magnitudes based on 2024 actuals or 2025 estimates, intended only to convey a sense of scale; they should not be used in contracts or external promotion. Statistical definitions of dry rubber, compound rubber, and processing trade may differ by country.

A grade is a classification within a standard system, not a quality guarantee for any specific batch; purchasing decisions should be based on the factory, batch, and COA parameters, as the same grade may still vary between factories and seasons.