Application for information that withhold the disclosure in Taiwan SDS


 Legal Basis


Article 18 of the Regulation of Labelling and Hazard Communication of Hazardous Chemicals (hereinafter referred to as “the Regulation“) provides that manufacturers, importers or suppliers can apply to withhold the disclosure of information in SDS necessary for national security or trade secret protection:

  • Name of hazardous chemical ingredient
  • CAS number of hazardous chemical ingredient
  • Concentration of hazardous chemical ingredient
  • Name of manufacturer, importer or supplier

Hazardous chemical ingredients excluded from Article 18 information protection provision


In accordance with Article 18 of the Regulation, SDS Withholding Applications may not be submitted for hazardous chemical ingredients that fall under the following conditions:

1) Workplaces allowed to expose the chemical substances listed in the standard.

2) Substances under the national standard CNS15030 classification:

  • Acute toxicity (category 1, category 2 or category 3)
  • Skin corrosion or irritation (category 1)
  • Serious eye damage/eye irritation (category 1)
  • Respiratory and skin sensitization
  • Germ cell mutagenicity
  • Carcinogenicity
  • Reproductive toxicity
  • Specific target organ toxicity- Single exposure (category 1)
  • Specific target organ toxicity- Repeated exposure (category 1)
  • Other substances as may be determined and authorized by the competent authority.

Information to be Submitted


The following information is required when preparing SDS Withholding Applications:

1) Main information:

  • Details of Applicant/contact person /representative
  • Hazard chemical ingredient information
  • The information that withhold the disclosure in SDS

Note: If the applicant is a non-Taiwan manufacturer or institution, the manufacturer or corresponding institution in Taiwan will have to be entrusted for the submission of the application and authorization documents.

2) National security or trade secrets certification information:

  • Certification as a national security or trade secret
  • Countermeasures to protect national security or trade secrets
  • Evaluation of the economic benefits of applicants and their competitors

3) Hazard classification description and information of hazardous chemical ingredient:

This chemical ingredient cannot belong to any of the following categories: acute toxicity (category 1, category 2 or category 3), skin corrosive or irritation (category 1), severe eye injury or eye irritation (category 1), respiratory or skin sensitization, germ cell mutagenicity, carcinogenicity, reproductive toxicity, specific target organ toxicity -single exposure (category 1), specific target organ toxicity – repeated exposure (category 1).

Note: For those applying only to withhold “the name of the manufacturer, importer or supplier”, it will not be necessary to provide “information on the hazardous chemical ingredient” nor “hazard classification description and certification information of hazardous components”.

Our Services


    • Technical analysis to determine if the chemical ingredient allows for filing of SDS Withholding Application
    • Collection of chemical information of hazardous ingredients
    • Data gap analysis
    • Information organizing and online submission
    • Effective and regular communication with the local Taiwan team and official authorities