Article 1
    These Regulations are adopted for the purposes of the operating procedures and implementation schedule with regard to the alteration of trading method and suspension of trading of listed securities.

Article 2
    For the purposes of these Regulations, a listed company refers to a listed company, a primary listed company, a secondary listed company, a Taiwan Innovation Board listed company and a Taiwan Innovation Board primary listed company, as in Article 43 of the Operating Rules of the TWSE.

Article 3
    Where circumstances apply to a listed company under which the TWSE is entitled by the Operating Rules or other provisions of the TWSE to impose an alteration of trading method or a periodic call auction trading method on the listed securities of such company, the TWSE will make a public announcement after confirmation, and the alteration of trading method or periodic call auction trading method will be implemented from the second business day after the date of public announcement, or from the business day after the date of public announcement if the circumstances set forth in the following provisions of Operating Rules of the TWSE apply:

1. Article 49, paragraph 1, subparagraph 6, 8 or 9; Article 49-1, paragraph 1, subparagraph 5, 7 or 8, or paragraph 9, subparagraph 5 or 6; Article 49-2, paragraph 1, subparagraph 1, 2 or 3; Article 49-3, paragraph 1, subparagraph 1, 2 or 3; Article 49-4, paragraph 1, subparagraph 6, 8, or 9.
2. Article 49, paragraph 1, subparagraph 10; Article 49-1, paragraph 1, subparagraph 13, or paragraph 9, subparagraph 11; Article 49-2, paragraph 1, subparagraph 6; Article 49-3, paragraph 1, subparagraph 6, or Article 49-4, paragraph 1, subparagraph 17, as deemed necessary by the TWSE.

Article 4
    If, after an alteration of trading method is imposed on the listed securitiesof a listed company, circumstances under the Operating Rules or other provisions of the TWSEapply where trading of said securities by the normal trading methodmay be resumed, the TWSE will make a public announcement after confirmation, and the resumption will be implemented from the second business day after the date of public announcement.
    If, after a periodic call auction trading method is imposed on the listed securities of a listed company, circumstances under Article 49-2, paragraph 2 or Article 49-3, paragraph 2 of the Operating Rules of the TWSE apply where the requirement of such method may be lifted, the handling procedures are governed by the preceding paragraph.

Article 5
    If circumstances of suspension of trading of listed securities under the Operating Rules or other provisions of the TWSE apply to a listed company, the TWSE will make a public announcement after confirmation of the fact, and such trading will be suspended from the second business day after the date of public announcement. However, under any of the following circumstances, the TWSE will, on the earliest of the date it learns of the event, the date it receives notification of the court ruling prohibiting the transfer of shares, or the date of disclosure of material information of the listed company, publicly announce the suspension of trading of the company's securities commencing from the business day following the date of such public announcement:

1. Article 50, paragraph 1, subparagraph 2; Article 50-3, paragraph 7, subparagraph 1 or 2; or Article 50-9, paragraph 1, subparagraph 3, of the Operating Rules of the TWSE;
2. Article 50, paragraph 1, subparagraph 18; or Article 50-3, paragraph 1, subparagraph 15, or paragraph 7, subparagraph 3; or Article 50-9, paragraph 1, subparagraph 15, of the Operating Rules of the TWSE, if the TWSE deems necessary.

    If circumstances of suspension of trading are under Article 50-2, paragraph 6 of the Operating Rules of the TWSE where trading of the close-end funds, exchange-traded funds, or offshore exchange-traded funds, the TWSE will make a public announcement after confirmation of the above circumstance, and trading of their beneficial certificates will be suspended from the next opening of the market trading day immediately after the date of public announcement.

Article 6
    If, after the TWSE publicly announces the suspension of trading of the securities of a listed company under any of the circumstances in the first paragraph of the preceding article, the circumstances warranting the suspension improve prior to the implementation date, a public announcement of exemption will be made, and the matter will be reported to the competent authority for recordation.

Article 7
    If, after trading of the listed securities is suspended, circumstances under the Operating Rules or other provisions of the TWSE where such trading may be resumed apply, the procedures governing the public announcement to be made by the TWSE of the resumption are governed by Article 5.

Article 8
    These Regulations shall take effect after having been submitted to and approved by the competent authority. Subsequent amendments thereto shall be effected in the same manner.