February 18, 2019 To: The President The Stock Exchange of Thailand Re: 2018 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s 2018 operating

Thailand Advance Info Service Public Company Limited (AIS) would like to inform the spectrum auction result participated by Advanced Wireless Network Co.,Ltd. (AWN), a 99% subsidiary of the Company, on 16

Stock Exchange of Thailand Filter Vision Public Company Limited and its subsidiaries (Hereinafter called “The Group”) would like to submit Management’s discussion and analysis for the Year 2017 with the

take-home products. In addition, the company expects that during the second half of the year the tourism sector is likely to begin to recover and will likely result in a higher dessert café revenue from

1 Zen Corporation Group Public Company Limited 662 Soi Onnuch 17, Suanluang, Bangkok 10250 THAILAND. Tel: 02-0195000 8 May 2020 No. ZEN 2563-011 Subject Management Discussion and Analysis for the 1st

Company 12 15 25% Gross Profit Margin (%) 58.7% 60.6% 1.9% EBITDA Margin1 (%) 31.5% 29.0% (2.5%) Net Profit (Loss) Margin 1 (%) 6.6% 7.5% 0.9% Number of branches as at March 31 39 39 - • After You Public

with the postponement of the Windows 12 operating system launch until mid-next year. Additionally, the company has plans to expand into the solar cell sales and installation business, with an anticipated

Management’s Discussion and Analysis For the period ended 30 September 2017 Bangkok Airways Public Company Limited and Its Subsidiaries 1 ASIA’S BOUTIQUE AIRLINE Bangkok Airways Public Company

Malee Group Public Company Limited and Its Subsidiaries Management Discussion and Analysis For the Fourth Quarter and the Year Ended 31 December 2017 1. Q4/2017 Highlights Figure 1: Quarterly results

economy demonstrated cautious growth driven by tourism-related sector expansion and subsided inflation, while facing political uncertainties and global economic risks. AIS core service revenue reported at