TOSH proposes safety measures after Kanchanaburi plant explosion

MGR Online•Society•7d ago

Reader Briefing

TOSH has analyzed a fatal antimony smelting plant explosion in Kanchanaburi and proposed a comprehensive safety framework to prevent future industrial accidents.

•An antimony smelting furnace exploded at Green Tech Antimony Co., Ltd. in Kanchanaburi on August 4, 2026.
•The explosion caused 7 injuries, resulting in the deaths of 2 Myanmar workers and leaving 1 Thai worker in critical condition in the ICU.
•TOSH proposed the 6M analysis framework and a 4-layer prevention measure system to address industrial safety failures.

Overview

•An explosion occurred at the antimony smelting furnace of Green Tech Antimony Co., Ltd. in Huai Krachao District, Kanchanaburi, during the early morning of August 4, 2026.
•The explosion caused 7 workers to suffer burns on their faces, necks, and bodies, resulting in the deaths of Lin Htet Aung and Saw Win Oo.
•A 45-year-old Thai worker remains in critical condition under close medical supervision in the ICU after being transferred from Huai Krachao Chalermprakiat 80 Phansa Hospital to Phahol Polpayuhasena Hospital.
•TOSH released a safety engineering analysis stating that furnace explosions typically result from the failure of multiple linked systems rather than a single point of error.
•TOSH proposed the 6M analysis framework involving Machine, Method, Material, Man, Measurement, and Milieu to investigate the root causes of accidents.
•TOSH identified three primary risks in antimony smelting at 1,000-1,200 degrees Celsius: steam explosions from moist raw materials, internal pressure buildup, and the accumulation of flammable gases like carbon monoxide and hydrogen.
•TOSH suggested a 4-layer prevention measure including automatic shut-off systems, real-time gas detection, raw material drying, Lockout/Tagout (LOTO), Standard Operating Procedures (SOP), and daily checklists.
•Dr. Nantachai Panyasurarit stated that the accident reflects the necessity for establishments to strictly follow safety laws and report serious accidents immediately.

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Key Entities

Organization

TOSH(สถาบันส่งเสริมความปลอดภัย อาชีวอนามัย และสภาพแวดล้อมในการทำงาน (องค์การมหาชน))

A public organization that provides safety engineering analysis and proposes safety frameworks for industrial accidents.

Green Tech Antimony Co., Ltd.(บริษัท กรีน เทค แอนติโมนี จำกัด)

The company operating the antimony smelting plant where the explosion occurred in Kanchanaburi.

Huai Krachao Chalermprakiat 80 Phansa Hospital(โรงพยาบาลห้วยกระเจาเฉลิมพระเกียรติ 80 พรรษา)

The first medical facility where the 7 injured workers were taken.

Phahol Polpayuhasena Hospital(โรงพยาบาลพหลพลพยุหเสนา)

The hospital to which the injured workers were transferred for further treatment.

Place

Kanchanaburi(กาญจนบุรี)ℹ️

The province where the smelting plant explosion occurred.

Huai Krachao Subdistrict, Huai Krachao District(ต.ห้วยกระเจา อ.ห้วยกระเจา)

The specific location of Green Tech Antimony Co., Ltd. in Kanchanaburi.

Person

Lin Htet Aung(LIN HTET AUNG)

A 27-year-old Myanmar worker who died in the explosion.

Saw Win Oo(ซอ วิน อู)

A 29-year-old Myanmar worker who died in the explosion.

Dr. Nantachai Panyasurarit(ดร.นันทชัย ปัญญาสุรฤทธิ์)

The Director of TOSH.