be recognized in one year) 170.44 97.55 - Installation of water production systems and construction of turnkey water treatment systems 14.74 27.13 Total 1,201.20 771.44 Yours Truly, WIIK & HOEGLUND

group 733.46 678.37 Water management business group (only amount recognize in year 2018) 137.49 67.53 Total 870.95 745.90 Yours Truly, WIIK & HOEGLUND PUBLIC CO., LTD. Mr. Wiboon Sangwithayanon Chief

Thailand, targeting area’s in Energy, Eco and Materials. M&A targets in any other area, when encouraging, will be considered as well. Please be informed accordingly. Yours truly, -- Signature -- (Ms

, will be considered as well. Please be informed accordingly. Yours truly, -- Signature -- (Ms. Suthathip Pilasarom) Company Secretary Board Secretary Division Tel. 0 2695 9499 Ext. 9335, 9414 Fax. 0 2695

amount to be recognized in year 2018) 114.94 24.59 Total 626.82 840.48 The reasons of decreasing in backlog from sale and installation of the pipeling business group are as aforementioned. Yours Truly

625.82 Yours Truly, WIIK & HOEGLUND PUBLIC CO., LTD. Mr. Wiboon Sangwithayanon Chief Executive Officer

Committee. It appears to be most beneficial to the Company. Please be informed accordingly. Very truly yours, Mr. Suchat Mongkhonaripong President and Chief Executive Officer

2020. Please be informed accordingly. Yours truly, -Dr. Noppadol Mingchinda- Dr. Noppadol Mingchinda Chief Financial Officer

. ______________________________________________________________________________________________ Please be informed accordingly. Yours truly, -- Signature -- (Mr. Tommy Taechaubol) Managing Director Board Secretary Division Tel. 0 2695 9499 Ext. 9335, 9414 Fax. 0 2695 9495 Finance and

including 7 projects under construction which are currently on sell and expected to complete in 2020 – 2021 for 4 projects. Please be informed accordingly. Yours truly, -Mr.Wichian Padhayanun- Mr.Wichian