Regulations of New and Existing Chemical Substances Registration Article 21

The confidential period of the information on chemical substances approved by the central competent authority is valid for 5 years.Except for the existing chemical substances, the confidential period pursuant to Article 20, paragraph 5 expires as the valid period for the corresponding registration expires.A registrant may apply for extension of a confidential period specified in paragraph 1 three to six months prior to expiry of the period.The maximum confidential period for a new chemical substance is 15 years; for an existing chemical substance, the maximum confidential period is 10 years. For a new chemical substance that has been included in the inventory of existing chemical substances, the maximum confidential period is 15 years.