Technically specified natural rubber (TSNR)
Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip. > Natural rubber in other forms: > Technically specified natural rubber (TSNR) > Technically specified natural rubber (TSNR)
Duty Rate (from China)
Products classified under Tariff item 4001.22.00.00
Brown Crepe TSNR
Brown crepe TSNR sheets are produced from low-grade coagulum and technically specified to meet international standards. They are in primary sheet form, uncut or simply cut to rectangular shape, and retain the essential character of raw natural rubber.
4001.22.00ESTR 20 Easy Standard Thai Rubber
ESTR 20 is an enzyme-treated TSNR in bale form, processed to improve processing ease. It meets technical specifications for dirt, ash, and nitrogen content, and is in a primary bulk form as defined in Chapter 40 Note 3.
4001.22.00HV Rubber High Viscosity TSR
High viscosity TSNR bales are produced via low-temperature coagulation and controlled for viscosity to suit tire tread applications. They are in primary bale form, uncompounded, and meet TSNR technical specifications.
4001.22.00Pale Crepe TSNR Grade
Pale crepe TSNR sheets are technically specified with low color for medical applications. They are in primary sheet form, uncut or simply cut, and retain the essential character of raw natural rubber without prohibited additives.
4001.22.00RSS 1 Ribbed Smoked Sheets Natural Rubber
RSS 1 is the highest grade of ribbed smoked sheets, technically specified with very low dirt content and high initial plasticity. It is in primary sheet form, produced by coagulating, rolling, and smoke-drying natural latex.
4001.22.00RSS 3 Ribbed Smoked Sheet Rubber
RSS 3 is a technically specified ribbed smoked sheet grade with slightly higher dirt content (0.20%) than RSS 1, suitable for tire carcasses and conveyor belts. It is in primary sheet form, uncompounded.
4001.22.00RSS 5 Ribbed Smoked Sheets Grade 5
RSS 5 is an economy-grade TSNR with higher dirt tolerance (0.50%), used for general compounding. It is in standard sheet form, technically specified, and in primary form as defined in Chapter 40 Note 3.
4001.22.00SIR 20 Technically Specified Natural Rubber
SIR 20 is a standard grade of TSNR produced from coagulated natural latex, meeting International Rubber Study Group specifications for dirt, ash, and nitrogen levels. It is in primary bale form, uncompounded.
4001.22.00SIR 3L Standard Indonesian Rubber Light
SIR 3L is a light-grade TSNR with low plasticity number for easy processing in soft compounds like erasers and cements. It is in baled primary form, meeting TSNR specifications.
4001.22.00SIR 50 Standard Indonesian Rubber
SIR 50 is a lower-grade TSNR from Indonesian plantations, coagulated into loose crumbs and compressed into bales with higher ash tolerance (1.5%). It is in primary bulk form, suitable for cost-sensitive applications.
4001.22.00STD 20 Standard Thai Rubber Bale
STD 20 is a TSNR from Thailand with standard bale compression of field coagulum and a dirt content of 0.15% maximum, ideal for heavy-duty tires and belts. It is in primary bale form, technically specified.
4001.22.00TSR 10 Technically Specified Rubber Bale
TSR 10 is a grade of TSNR consisting of air-dried natural rubber sheets granulated and compressed into uniform 35kg bales, specified for moderate dirt (0.20%) and ash (0.75%) levels. It is in primary bale form.
4001.22.00TSR 20 Granulated Natural Rubber
TSR 20 granulated TSNR is compressed into bales for conveyor belting, with medium specifications for industrial use. It is in primary bale form, uncompounded, and meets TSNR standards.
4001.22.00TSR CV60 Constant Viscosity Rubber
TSR CV60 is a technically specified natural rubber with controlled viscosity (Mooney 60±5) achieved through enzyme treatment of coagulum, baled for consistent processing in extrusion applications. It is in primary bale form.
4001.22.00UTSR 5 Upper Thailand Specified Rubber
UTSR 5 is a premium crumb TSNR grade with very low impurities, compressed into bales for precision molding compounds. It is in primary bulk form, technically specified for optical clarity in technical rubber parts.