Topic cluster · 17 cross-linked pages

Polyvinyl chloride (PVC)

聚氯乙烯

Polyvinyl chloride is the third-largest polymer by volume globally and the single largest commodity polymer line from China, with capacity dominated by calcium-carbide acetylene route in Xinjiang and Inner Mongolia and ethylene-route capacity in coastal clusters. PVC suspension (S-PVC) is the bulk grade for pipe, profile, and film; PVC emulsion (E-PVC) and microsuspension grades serve coating and specialty applications. The 2024 US Section 301 review added select PVC and downstream codes to the list at 25 percent. Chinese supply sits in Ningbo Petrochemical, Tianjin Nangang, and the Inner Mongolia carbide complexes. This cluster aggregates CAS 9002-86-2 across the regulatory matrix and the PVC hub. The CAS 9002-86-2 is a polymer registration; the substance-level CAS page is not the same surface and is therefore not included.

Glossary

Terms you will meet on this lane

Sourzi operator note

Carbide-versus-ethylene route is the cost decision behind every PVC quote out of China. The downstream buyer who knows the difference saves 8 to 15 percent at the bulk-resin stage.

Curated by Sean. Primary-source verified per the regulatory drafting rules in Sourzi CLAUDE.md.

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