Authorized Signatory Attachment 1 (F 53-4) -Translation- 1/8 Capital Increase Report Form Hydrotek Public Company Limited 21 September 2017 and Additional Amendment We, Hydrotek Public Company Limited, hereby
30 years. The Company will give promise the extend the lease term for another 30 years. If WHART Trust exercises the right under the promise upon the expiration of the first 30 years, the total lease
of 1 warrant : 1 share : 1 voting right, and a total of 20,000 issued convertible debentures, with the conversion ratio of 1 convertible debenture : 40 shares : 40 voting rights. ■ Mr. Kor holds shares
voting rights of the total paid-up share capital and a total of 50,000 issued warrants, with the exercise ratio of 1 warrant : 1 share : 1 voting right, and a total of 20,000 issued convertible debentures
Example: ■ Company A Plc (“Company A”) has 1 million voting rights of the total paid-up share capital and a total of 50,000 issued warrants, with the exercise ratio of 1 warrant : 1 share : 1 voting right
: 1 share : 1 voting right, and a total of 20,000 issued convertible debentures, with the conversion ratio of 1 convertible debenture : 40 shares : 40 voting rights. ■ Mr. Kor holds shares with 45,000