15 May 2017 Subject: Management Discussion & Analysis for Quarter 1 ending 31 March 2017 To: The President The Stock Exchange of Thailand Harn Engineering Solutions Public Company (“The Company

10 November 2017 Subject: Management Discussion & Analysis for 3th quarter ending 30 September 2017 (Rev1) To: The President The Stock Exchange of Thailand Harn Engineering Solutions Public Company

476,735,381 3.63062 GULF 27,019,247 0.23028 GUNKUL 808,086,141 9.09748 GVREIT 1,776,902 0.21808 GYT 1,137 0.01536 HANA 23,265,409 2.89055 HARN 17,799,398 3.04523 HEMP 589,376 0.15409 HEMP-W2 1,167 0.00066 HENG

GVREIT 1,714,400 0.21041 GYT 1,037 0.01401 HANA 23,277,220 2.89202 HARN 17,787,401 3.04318 HEALTH 589,376 0.15409 HEALTH-W2 1,182 0.00066 HENG 26,253,656 0.68907 HFT 29,742,107 4.51710 HL 14,101,200

0.01401 HANA 23,603,569 2.93256 HARN 17,783,397 3.04250 HEALTH 589,375 0.15409 HEALTH-W2 1,200 0.00067 HENG 43,861,458 1.15122 HFT 29,100,419 4.41964 HL 15,683,812 5.76611 HMPRO 44,227,600 0.33630 HPF

GUNKUL 773,729,038 8.71068 GVREIT 973,101 0.11943 GYT 1,037 0.01401 HANA 22,758,984 2.82763 HARN 17,783,401 3.04250 HEALTH 589,376 0.15409 HEALTH-W2 1,200 0.00067 HENG 30,669,719 0.80498 HFT 26,371,369

126,304 0.01316 GTV 477,825,900 3.63893 GULF 22,076,954 0.18816 GUNKUL 831,123,370 9.35683 GVREIT 1,252,600 0.15373 GYT 1,037 0.01401 HANA 25,015,933 3.10804 HARN 17,783,400 3.04250 HEALTH 589,375 0.15409

108,413 0.01129 GTV 487,783,636 3.71476 GULF 23,299,063 0.19857 GUNKUL 838,383,172 9.43856 GVREIT 1,418,200 0.17405 GYT 9,437 0.12753 HANA 25,588,642 3.17919 HARN 17,787,900 3.04327 HEALTH 589,376 0.15340

108,397 0.01129 GTV 478,163,579 3.64150 GULF 26,444,331 0.22538 GUNKUL 846,458,708 9.52948 GVREIT 2,110,700 0.25905 GYT 10,937 0.14780 HANA 23,882,995 2.96728 HARN 17,782,899 3.04241 HEALTH 589,375 0.15340

GUNKUL 979,982,237 11.03269 GVREIT 3,822,301 0.46911 GYT 14,337 0.19374 HANA 20,771,140 2.34605 HARN 17,765,696 3.03947 HEALTH 589,377 0.15340 HEALTH-W2 1,000 0.00056 HENG 24,169,693 0.63438 HFT 28,707,500