addition, a partnership with SUT should enhance company opportunity in construction service business. Please be informed accordingly. Yours sincerely, -Signature- (Mr. Slib Soongswang) Chief Executive

return will not be worth for the investment in the future. Both parties tend to agree for terminating the project in which both parties will not claim damages to each other. Signature Mr. Slib Soongsawang

been commenced and the total values of receivables under the concession agreement and intangible assets as ended September 30, 2017 were Baht 10.58 million and Baht 4.31 million, respectively. Slib

the total values of receivables under the concession agreement and intangible assets as ended December 31, 2017 were Baht 11.17 million and Baht 4.46 million, respectively. Mr. Slib Soongsawang Mr.Slib

receivables under the concession agreement and intangible assets as ended March 31, 2018 were Baht 10.96 million and Baht 4.26 million, respectively. Slib Soongswang Mr.Slib Soongswang (Chief Executive Officer)

Information Memmorandum remain the same as the Company Notification No. 090/1060 dated October 9, 2017. Please be informed accordingly. Yours sincerely, -Signature- (Mr. Slib Soongswang) Chief Executive Officer

to be made as appropriate. Please be informed accordingly. Yours sincerely, -Signature- (Mr. Slib Soongswang) Chief Executive Officer Authorized Signatory Attachment 1 -Translation- 1/18 Information

. Slib Soongswang) Chief Executive Officer Authorized Signatory Attachment 1 (F 53-4) 1/6 Capital Increase Report Form Hydrotek Public Company Limited 21 September 2017 We, Hydrotek Public Company Limited

Baht 11.94 million and Baht 4.52 million, respectively. Slib Soongsawang Mr.Slib Soongsawang (Chief Executive Officer)

assets as ended September 30, 2018 were Baht 11.97 million and Baht 4.42 million, respectively. Slib Soongsawang Mr.Slib Soongsawang (Chief Executive Officer)