Form 246-2

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Name of Acquisitor/Dispositor

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Reports on Acquisition or Disposition of Securities (Form 246-2) ( 3 record(s) found)

Name of Securities	Name of Acquisition/Disposition	Types	Types of Securities	% Held Before Acquisition/ Disposition	% Held Acquisition/ Disposition	% Held After Acquisition/ Disposition	Transaction Date	% Group of Held Before Acquisition/ Disposition²	% Group of Held Acquisition/ Disposition²	% Group of Held After Acquisition/ Disposition²	Remark³	No
BIOTEC	AUSTIN ASSET LIMITED	Commencement of status of a concert party	Stock	15.4132	15.4132	15.4132	08/07/2022	26.5118	26.5118	26.5118	others	246019612207-1
BIOTEC	AUSTIN ASSET LIMITED	Disposition	Stock	26.5118	11.0985	15.4132	08/07/2022	26.5118	11.0985	15.4132		246019702207-1
BIOTEC	Mr. Paven Panboonhom	Acquisition	Stock	0	11.0985	11.0985	08/07/2022	0	11.0985	11.0985		246019712207-1

Stock: common stock or preferred stock or depository receipt (DR).
Convertible Securities: warrant or convertible debenture or other securitiesconvertible to stock.
In case of group report, disclose the changes in the holding of individuals, thegroup percentage of acquisition/disposition,
the group percentage after theacquisition/disposition and the person(s) under Section 258 of the Securities and Exchange Act B.E.2535.
Preliminary version: incomplete and/or being reviewedinformation.
Revised version: new report submitted by the reporter to replace theold one.
Chain principle: indirect acquisition of stocks by the reporter, triggering a tender offer.

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