Public Company Limited (“the Company”) started consolidating operating results from the acquisition of TBSP Public Company Limited (“TBSP”) from 4 April 2018, and reported an increase in total revenues of

- Translation - 13 August 2020 Subject: Management’s Discussion and Analysis for the Operating Results of the Second Quarter of 2020 Attention: The President of the Stock Exchange of Thailand Exotic

decreased by 57.69 million baht or 47 percent. Since in 2020, the Company and its overseas subsidiaries have been affected by the COVID-19 epidemic situation, in addition, in the year 2020, operating results

October 3, 2019 Re: Clarification of the operating results of company and its subsidiaries for the 1 st quarter of year 2018 To: President The Stock Exchange of Thailand K.C. Property Public Company

World Corporation Public Company Limited. Ref. World7-15-2017 4 Moo11 Hathai Rat Road, TumbonLatSawai, AmpurLumLukKa, PathumThani Province 31 July 2017 Subject: The reported operating results for the

-68.42% Operating results for each business segment are shown below: 1. Manufacturing and Selling of Special Cutting Tools unit: THB million 2019 2018 Change (THB million) Change (%) Revenue from External

Public Company Limited ("the Company") No. 7/2019 on 13 August 2019, it was resolved to approve the financial statements and the operating results of the Company. For the period ended June 30, 2019, which

Public Company Limited ("the Company") No. 9/2019 on 11 November 2019, it was resolved to approve the financial statements and the operating results of the Company. For the period ended September 30, 2019

Subject: Clarification for the year Ended May 31, 2019 operating results that posted a difference greater than 20% To: Director and Manager the Stocks Exchange of Thailand World corporation public company

. DOD2019/004 February 20, 2019 Subject: Management’s discussion and analysis of the Company’s operating results for the year 2018 period To: President The Stock Exchange of Thailand DOD Biotech Public