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Amended Article

Title:

The TAIEX Methodology  CH

Amended Date: 2020.05.11 
Categories: Basic Laws and Regulations
3     Upon occurrence of any of the below-listed events, the base value of the TAIEX computed by TWSE shall be adjusted to maintain the continuity of the TAIEX:
  1. Effective date of addition or deletion of a constituent stock;
  2. Ex-right date of subscription of common shares for cash capital increase;
  3. Listing date of distribution of common shares or certificates of entitlement to new shares to employees as compensation;
  4. Ex-right date of distribution of common shares as stock dividends on preferred shares;
  5. Ex-right date of holding by a listed company of treasury stock for which capital cancellation has not been carried out;
  6. Ex-right date or the third trading day of the next month following public announcement of capital decrease, whichever comes first, for share cancellation in accordance with the law;
  7. Reversing to the original number of issued shares on the third trading day of the next month following receipt of notification of failed offering for cash capital increase;
  8. Listing date of certificates of entitlement to new shares or issuance of new shares following company merger or consolidation;
  9. Listing date of common shares issued in replacement of certificates of entitlement to convertible corporate bonds;
  10. Ex-right date or the third trading day of the next month following the public announcement of capitalization amendment registration in the event of common shares converted directly from convertible corporate bonds or shares issued through exercise of securities with subscription rights;
  11. Listing date of cash capital increase shares or certificates of payment for which shareholders have waived subscription rights and public underwriting has been adopted;
  12. Listing date of new shares issued for global depositary receipts;
  13. Ex-right date or the third trading day of the next month following the public announcement of capitalization amendment registration in the event of common shares converted from convertible preferred shares;
  14. Or other non-trading factors affecting aggregate market value.
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4     The formula for adjustment of the base value is as follows:
    Base value of the current day = Base value of the previous day * (Adjusted aggregate market value after the close of the previous day / closing aggregate market value of the previous day)
    Adjusted aggregate market value after the close of the previous day = Closing aggregate market value of the previous day + sum total of all adjustments in market value
    Adjustments in market value are calculated as follows:
    Paragraph 1, Article 3 of these Directions: Adjusted market value = Closing price of the previous day * number of shares issued
    Paragraph 2, Article 3 of these Directions: Adjusted market value = Subscription price of cash capital increase * number of cash capital increase shares
    Paragraph 3, Article 3 of these Directions: Adjusted market value = Closing price of the common shares before the listing date of distribution of common shares or certificates of entitlement to new shares to employees as compensation * number of shares resulting from compensation to employees
Paragraph 4, Article 3 of these Directions:
Adjusted market value = Ex-right reference price of common shares * total number of common shares issued as stock dividends on preferred shares
Ex-right reference price of common shares = (Closing price before ex-right date + cash capital increase subscription price * cash capital increase share distribution rate) / (1 + shareholder stock dividend rate + cash capital increase share distribution rate)
Shareholder stock dividend rate = Number of capital increase shares distributed as dividends to shareholders / number of shares issued before the ex-right date
Cash capital increase share distribution rate = Number of shares issued for the cash capital increase / number of shares issued before the ex-right date
    Paragraph 5, Article 3 of these Directions: Adjusted market value = Aggregate market value after the ex-right date – aggregate market value before the ex-right date
Market value before the ex-right date = (Closing price before the ex-right date – cash dividends per share) * number of shares issued before the ex-right date
Market value after the ex-right date = (Closing price before the ex-right date – cash dividends per share) / (1 + shareholder stock dividend rate) * number of shares issued after the ex-right date
    Paragraphs 6, 7, 8, 9, 10, 11, 12, 13, and 14, Article 3 of these Directions: Adjusted market value = Closing price of the previous day * change in the number of shares
    If the closing price is not available, the opening auction price of the current day may be used for the calculation of the various adjusted market values in accordance with Article 4 after the closing of the previous day.
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