คำอธิบายและการวิเคราะห์ของฝ่ายจัดการ 10 May 2018 Re: To clarify the financial statements as of 31 March 2018 To: President The Stock Exchange of Thailand WHA Corporation Public Company Limited (the

Corporation Public Company Limited (Mr. Arttavit Chalermsaphayakorn) Chief Financial Officer FINANCIAL PERFORMANCE FOR 3 MONTHS AND 9 MONTHS ENDED 30 SEPTEMBER 2018 Cash flow analysis

คำอธิบายและการวิเคราะห์ของฝ่ายจัดการ 8 August 2019 Re: To clarify the financial statements as of 30 June 2019 To: President The Stock Exchange of Thailand WHA Corporation Public Company Limited (the

คำอธิบายและการวิเคราะห์ของฝ่ายจัดการ 11 August 2020 Re: To clarify the financial statements as of 30 June 2020 To: President The Stock Exchange of Thailand WHA Corporation Public Company Limited (the

Corporation Limited On 24 October 2017, the Extraordinary Shareholders’ Meeting of That’so Asia Corporation Company Limited (“That’so”) passed a resolution to increase its registered share capital totaling Baht

% 79.06 43.34% (18.60) (23.53%) Total Revenues 156.84 100% 182.43 100.00% (25.59) (14.03%) 1B1, B2: Filters Vision Public Company Limited (Herein after “The Company”). 2B3: Irving Corporation Ltd., KT

August , Ref: SET-- Re: Management Discussion and Analysis for Quarter ’ Attn. to: President The Stock Exchange of Thailand Filter Vision Public Company Limited and its subsidiaries (Hereinafter

)2 310.16 37.94% 300.73 45.79% 9.43 3.14% Total Revenues 817.56 100.00% 656.71 100.00% 160.85 24.49% 1B, B: Filters Vision Public Company Limited (Herein after “The Company”). 2B: Irving Corporation

the Year . In the year , Filter Vision Public Company Limited (Herein after called “The Company”) continuously carries on presenting new products, which is Ozone water machinery (Ozonated water), As

100.00% 112.48 100.00% 28.10% 1B1, B2: Filters Vision Public Company Limited (Herein after “The Company”). 2B3 : Irving Corporation Ltd., KT Medical Services Co., Ltd., Medical Vision Co., Ltd. and Hi