Colombia Upholds Anti-Dumping Duties on Chinese Acrylic Sheets

Colombia’s anti-dumping duties on Chinese acrylic sheets have been extended following a positive sunset review final determination — a development with direct implications for the global smart dimming glass supply chain. Announced on April 28, 2026, the ruling affects materials widely used in optical protective overlays and encapsulation substrates for electrochromic films. As Colombia tightens import controls and certification requirements, stakeholders across the value chain face heightened compliance pressure — particularly those engaged in cross-border trade, component sourcing, and functional glass assembly.

Event Overview

On April 28, 2026, Colombia’s Ministry of Commerce, Industry and Tourism issued Resolution No. 148, affirming the continuation of anti-dumping duties on imported acrylic sheets (láminas de acrílico) originating from China following the first sunset review. The measure applies specifically to flat, transparent or tinted acrylic sheets used in technical applications — including as protective cover plates and substrate layers in smart dimming glass systems.

Industries Affected

Direct trading enterprises — Importers and distributors based in Colombia and other Andean Community countries must now navigate elevated tariff barriers and more stringent customs classification verification. The ruling increases landed cost uncertainty and extends documentation review timelines, especially where product specifications overlap with regulated optical-grade polymers.

Raw material procurement enterprises — Buyers sourcing acrylic sheets from Chinese suppliers for downstream integration into smart glass assemblies face dual challenges: higher duty-inclusive procurement costs and growing demand for traceable, certified material declarations. Non-compliant shipments risk detention or reclassification under Colombia’s Technical Regulation Decree 2927 of 2023.

Processing and manufacturing enterprises — Firms that laminate, cut, or integrate acrylic substrates into functional glass modules (e.g., PDLC- or EC-based smart windows) may encounter delays in bill-of-materials validation. Local certification authorities are increasingly requesting evidence of upstream material conformity — not just finished-product testing — adding internal audit burden.

Supply chain service providers — Logistics operators, customs brokers, and regulatory consultants serving the Latin American smart glass market report rising client requests for pre-clearance verification packages. This includes origin certification, chemical composition affidavits, and third-party test reports aligned with Colombian Institute of Technical Standards (ICONTEC) guidelines.

Key Focus Areas and Recommended Actions

Verify material classification against ICONTEC NTC 5225:2024

Acrylic sheets intended for optical or safety-critical use must now be assessed under updated Colombian technical standards. Suppliers should proactively align product data sheets with NTC 5225’s dimensional tolerance, UV resistance, and flame-retardancy thresholds — even if not explicitly labeled “for construction” or “architectural use.”

Prepare ISO 13485 or IECQ QC080000 documentation

While not yet mandatory under law, Colombian customs and local certification bodies are increasingly treating ISO 13485 (medical device quality management) and IECQ QC080000 (hazardous substance process management) as de facto benchmarks for high-integrity polymer components. Chinese exporters are advised to obtain these certifications — or at minimum, issue signed declarations of conformity — ahead of shipment.

Review country-of-origin labeling and packaging language

Resolution No. 148 emphasizes strict enforcement of Spanish-language labeling requirements for imported plastic sheets. Labels must include full manufacturer address, batch number, nominal thickness, and applicable normative references — all printed legibly in Spanish. Bilingual labels without full Spanish translation are no longer accepted.

Editorial Perspective / Industry Observation

Observably, this is not an isolated trade action but part of a broader regional pattern: Ecuador and Peru have recently launched parallel investigations into imported polymer sheets, citing similar concerns over market distortion and domestic industry viability. Analysis shows that while acrylic sheets represent only ~7% of total smart dimming glass BOM cost, their classification often triggers cascading compliance reviews — making them a strategic regulatory chokepoint. From an industry perspective, the emphasis on upstream material certification signals a shift from end-product conformity toward full supply chain accountability. Current trends suggest future reviews may extend to PET-based interlayers or conductive coatings — areas where Chinese exporters hold significant global market share but limited localized certification infrastructure.

Conclusion

This sunset review outcome underscores how mid-tier technical materials — often overlooked in macro-level trade analyses — can become critical nodes of regulatory friction in high-value functional glass markets. For international suppliers, the decision reinforces that compliance readiness must extend beyond tariff codes and certificates of origin to include granular technical documentation, multilingual labeling, and proactive alignment with evolving national standards. A narrow focus on price competitiveness alone is no longer sufficient; structural preparedness for localized regulatory engagement is now a core capability.

Source Attribution

Official source: Resolution No. 148 of April 28, 2026, issued by Colombia’s Ministry of Commerce, Industry and Tourism (MinCIT), published in Diario Oficial No. 53,792. Additional context drawn from ICONTEC Technical Standard NTC 5225:2024 and Decree 2927 of 2023 on Technical Regulations for Plastic Materials in Construction Applications. Note: Implementation guidance and classification rulings remain subject to interpretation by Colombia’s National Superintendency of Tax and Customs (DIAN); updates will be monitored through Q3 2026.