Taiwan’s Toxic Chemicals and Concerned Substances Control Act (TCCSCA)
Taiwan’s Toxic Chemicals and Concerned Substances Control Act (TCCSCA), in force since 1 January 2020, establishes comprehensive registration and reporting obligations for both new and existing chemical substances manufactured in or imported into Taiwan. Compliance requirements vary depending on substance status (new or existing), classification as a Priority Existing Chemical (PEC), and annual tonnage.
Existing substances listed on the Taiwan Chemical Substance Inventory (TCSI) must undergo Phase One Registration when manufactured or imported at quantities above 100 kg/year, followed by Standard Registration if designated as a PEC and exceeding 1 tonne per year. New substances require pre-manufacture or pre-import registration, with different registration routes depending on volume thresholds. All registered substances are subject to mandatory annual reporting to the Taiwanese EPA.
In parallel, Taiwan OSHA imposes additional obligations related to hazardous chemicals, including GHS-compliant labelling and SDS requirements, reporting of Priority Management Chemicals, and permitting for Controlled Chemicals.
For non-Taiwanese manufacturers, compliance can be challenging due to restrictions on acting as registrants directly. Yordas Group can support companies through the full TCCSCA and OSHA compliance process, including substance assessment, registration strategy, deadline management, and annual reporting, by working with a trusted Third Party Representative (TPR). This approach allows companies to meet regulatory obligations while protecting confidential business information and ensuring uninterrupted market access to Taiwan.

Expert consultants
With over 10 years of experience in global chemical registrations, Yordas supports a wide range of substances, including mono- and multi-constituents, UVCBs, and nanomaterials. Our expertise spans substance and dossier preparation, as well as generating new data required for regulatory submissions.

Client focused delivery
We manage the entire registration process on your behalf, ensuring a seamless path from data preparation to approval. The result is a faster, smoother market access for your products worldwide.