Hebei Changsheng Plastic Industry Co., Ltd. lists SG-grade PVC resin at US$630-700/ton with 1 ton MOQ, and at US$630/ton with 25 ton MOQ on separate listings, anchoring the lower-priced end of China's spot market on Made-in-China.com [S1][S8]. Hunan Mingray Trade Co., Ltd. quotes US$600-1,000/ton at 25 ton MOQ from Hunan, while GP Materials Technology (Jiangsu) Co., Ltd. posts a premium US$2.4-2.8/kg (100 kg MOQ) under ISO 9001:2015 and ISO 14001 certifications [S8].
Wuxi High Mountain Hi-tech Development sources paste-grade resin from Xinjiang Tianye in grades P440 and P450 at CB Index 58, packed in 25 kg PP+PE bags or 500 kg big bags — a clear signal that domestic paste-resin supply runs through Xinjiang [S2]. Cross-platform indexing on Kitairu shows K-value nomenclature HS-1300, HS-1000 and HS-800 as the three grades that overseas buyers most commonly RFQ against, alongside 2,000+ manufacturer entries and 6,000+ products on the broader Made-in-China chemicals taxonomy [S3][S7].
Cluster Geography: Where the Capacity Sits
Hebei, Shandong, Jiangsu and Hunan dominate the 2026 supplier directory, with Hunan and Jiangsu concentrated in export-oriented trading companies and Hebei in vertically integrated production plants [S1][S8]. Diamond Member and Audited Supplier flags — required for verified factory status on Made-in-China.com — appear consistently on Hebei Changsheng, Hunan Mingray, and GP Materials Technology, separating them from unverified resellers [S8].
Audit certifications across the visible top tier include ISO 9001:2015 (quality management) and ISO 14001 (environmental management) at GP Materials, and similar dual certifications on PVC tarpaulin and coated-fabric mill listings in the same directory, indicating a baseline compliance floor that serious bulk buyers should expect to see on a 2026 RFQ [S4][S8]. For reference on how K-value grading flows downstream into pipe extrusion, see the PVC resin encyclopedia entry and the related PVC-U pipe specification reference.
Pricing Tiers and MOQ Structure
Three pricing tiers are visible on 2026 listings. Tier 1 (commodity suspension-grade): US$600-700/ton at 1-25 ton MOQ from Hebei Changsheng, Hunan Mingray, and similar Diamond Members [S1][S8]. Tier 2 (mid-grade compounded or specialty): US$1.50-3.00/kg (1,000 kg MOQ) for PU-foam-blended PVC systems from Shandong Inov Polyurethane Co., Ltd. [S6]. Tier 3 (technical/process-grade or processed forms): US$2.00-50.00 per square meter for processed PVC foam with perforation, signalling conversion-stage pricing rather than raw resin [S6].
Anhui Orient Import & Export Co., Ltd. — listed simultaneously as PVC Resin Manufacturer, SLES and MSG Supplier — quotes food-grade additives at US$1,550-2,050/ton (16 ton MOQ) and sweeteners up to US$6,000-10,000/ton, illustrating how a single trading entity mixes commodity PVC with higher-margin food and feed chemicals on the same storefront [S5]. The wider directory lists US$630/ton and US$1,000/ton as the typical 2026 reference spread, with Wuxi High Mountain (Jiangsu) anchoring paste-resin supply chain and Wuxi-High Mountain Tel +86-0510-85881806 as a direct contact channel [S2][S8].
Grade Selection: SG, K-Value, and Paste-Grade Trade-offs
Suspension-grade (SG) homopolymer resin — grades SG-3 to SG-8 — covers the bulk of pipe, profile, and film extrusion, with K-value (or viscosity number) determining melt strength. Kitairu lists HS-1300, HS-1000 and HS-800 as the three K-value bands most often transacted in 2026; HS-1300 is the high-viscosity end targeting rigid pipe, HS-1000 sits in the flexible/profile range, and HS-800 covers low-viscosity injection and calendering [S3]. Paste-grade (emulsion polymerised) PVC — grades P440, P450 from Xinjiang Tianye — runs at CB Index 58 and feeds plastisol, dip coating, and synthetic leather rather than extrusion [S2].
Selection logic: if the application is rigid pressure pipe, profile or sheet, suspension-grade SG-5/SG-7 with K-value 65-72 is the default; if plastisol, artificial leather or rotational moulding, paste-grade P440/P450 is the only viable path and the buyer accepts a smaller supplier pool centred on Xinjiang feedstock [S2][S3]. A cross-reference for downstream pipe-grade K-value mapping is in the PVC resin grade reference; for the end-product specification of rigid pressure pipe fed by SG-7, the PVC-U pipe encyclopedia entry provides the linked operating limits.
Audit, Certification, and Risk Filters on 2026 RFQs
Verified status on Made-in-China.com is signalled by a combination of Diamond Member tier, Audited Supplier badge, and named certification body — most commonly ISO 9001:2015 and ISO 14001, with a small number of trading companies holding dual food-and-feed registrations [S4][S5][S8]. The platform lists response time of ≤3 hours as a routine buyer filter, and a separate tier flags "Manufacturer/Factory & Trading Company" entities that operate both a production line and a trading desk, which is the common hybrid for Chinese export PVC [S4].
Traders without factory assets — for example, the Hunan-based Trading Company entries in the older 2020 directory that lead with Titanium Dioxide and SLES alongside PVC Resin — are lower-cost but carry re-export and quality-chain risk that an Audited Supplier can mitigate [S9]. The PVC resin upstream and downstream chain map shows the same Xinjiang-paste / Hebei-SG split from a capacity-angle perspective.
Cross-Channel Sourcing Reality: Beyond the B2B Portal
Three independent channels surface the same supplier set: Made-in-China.com (volume RFQ + factory audit), ChemicalBook (chemical-specific with CAS, EINECS, and grade-level P440/P450), and Kitairu (open B2B index listing HS-1300/HS-1000/HS-800 with 2,000+ manufacturer entries and 6,000+ product lines) [S1][S2][S3][S7]. A buyer running a 2026 sourcing cycle should cross-check the same supplier on at least two of these — name, address, MOQ, and price — before issuing a purchase order.
Comparable feedstocks, especially where chlorine supply intersects, are tracked on the epoxy resin chlorine specs page — relevant where the same upstream chlor-alkali feed drives both PVC and epoxy pricing.
Limitations of a 2026 Supplier List
None of the visible 2026 entries publish K-value, plasticiser absorption, or residual VCM numbers — the spec data that actually governs extrusion throughput and pipe pressure rating is missing from the B2B listings [S1][S2][S8]. Directory pricing on Made-in-China.com is an indicative RFQ trigger, not a contract price; tier-1 HS-1300 pipe-grade contracts typically settle 8-15% below the listed spot on a 25-ton monthly volume, but no public source quantifies that discount. ISO 9001:2015 certification at the trading-company level does not extend to the actual producing factory unless the supplier is also flagged "Manufacturer/Factory", which is the case for Hebei Changsheng, GP Materials, and Shandong Inov, but not for the older 2020 Trading Company entries [S4][S8][S9].
Process engineers building a 2026 shortlist should expect to: (1) pull TDS for K-value, VCM residue, and bulk density direct from the audited factory, not the B2B listing; (2) confirm the Xinjiang Tianye paste-grade lot on the Wuxi High Mountain channel before specifying P440/P450 in a plastisol trial; and (3) check whether the listed MOQ on Hebei Changsheng is 1 ton (sampling) or 25 tons (production) — the price spread on the same supplier is the only signal in the data [S1][S2][S8].
Two trackable signals for the next sourcing cycle: confirmation that HS-1300 capacity at Hebei and Jiangsu plants holds through Q4 2026 (no public source yet), and whether the older Henan-based Trading-Company resellers from the 2020 directory [S9] have migrated to Audited Supplier status by year-end — both are verifiable on a single re-pull of the Made-in-China.com supplier index.
For the relevant spec sheets and selection criteria, see resin sand line.