Taiwan Holds Online Briefing on Hazard and Exposure Data Submission for Existing Chemicals

On 18 June 2025, Taiwan’s authorities hosts an online briefing to guide registrants on preparing and submitting hazard and exposure assessment data for existing chemical substances under the “Regulations on Registration of New and Existing Chemicals.”

The first phase of the regulations required 106 existing chemicals to complete standard registration, with most registrants having submitted items 1–7 of Appendix 3 by the end of 2024. The next step, according to Article 18, paragraph 2, is to submit items 8 and 9 of Appendix 4—hazard and exposure assessment data—for standard registrations at Level 2 or above.

To assist registrants, the authorities selected four chemicals as examples:

Antimony Trioxide (CAS 1309-64-4)

Sulfuric Acid (CAS 7664-93-9)

Toluene (CAS 108-88-3)

Zinc Oxide (CAS 1314-13-2)

Registrants are required to confirm hazard assessment report examples by the end of 2025 and complete submission of hazard and exposure information by the end of 2026.

The online session covered deadlines, report confirmation procedures, required data per registration type, and submission methods. Non-registrants of the four substances were also invited to join to understand general data preparation practices.

Event details:

• Date: June 18, 2025

• Time: 10:00–12:00

• Platform: Google Meet

• Resources: Presentation Slides, YouTube Video

Agenda:

• 10:00–10:20: Overview of existing chemical standard registration

• 10:20–11:00: Submission procedures for hazard and exposure assessment data

• 11:00–11:30: Methods for submitting data

• 11:30–12:00: Q&A and discussion

The briefing reinforces Taiwan’s efforts to support chemical registrants in meeting compliance requirements efficiently while ensuring comprehensive hazard and exposure assessments.