About Us

WHO WE ARE

Thai Polyacetal Co.,Ltd. (TPAC)

Thai Polyacetal Co.,Ltd. is a Joint Venture Company established in 1995 by Mitsubishi Gas Chemical and TOA Dovechem. The company produces polyacetal pellets, an engineering plastic known for its excellent friction and wear properties. Our polyacetal is marketed under the brand name Iupital™ and it is applied in various industrial fields, such as automotive where it is used in sliding elements. TPAC is the sole polyacetal producer in Thailand and it is located in the petrochemical complex of Maptaput, Rayong.

Thai Polycarbonate Co.,Ltd. (TPCC)

Thai Polycarbonate Co.,Ltd. is a Joint Venture Company established in 1996 by Mitsubishi Gas Chemical, Mitsubishi Chemical, Mitsubishi Engineering Plastics and TOA Dovechem. TPCC manufactures polycarbonate resin of the highest performance. Our product’s Iupilon™ brand is well known throughout the global automotive and technological industry as possessing the highest transparency and strength. TPCC is located adjacent to TPAC in Maptaput, Rayong.

MEP Engineering-Plastics (Thailand) Co.,Ltd. (MEPT)

MEP Engineering-Plastics (Thailand) Co.,Ltd. was established in 2006 as a wholly owned subsidiary company of TPCC. The company distributes various products of Mitsubishi Engineering Plastics (Japan) in Thailand. The product range includes polycarbonate, polyacetal, polybutylene terephthalate (PBT), polyamide MXD6 and modified polyphenylene ether (m-PPE).

MGC Engineering-Plastics Green Technology (Thailand) Co.,Ltd. (MEGT)

MGC Engineering-Plastics Green Technology (Thailand) Co.,Ltd. is our latest Joint Venture Company formed with Mitsubishi Gas Chemical. MEGT was established in 2024 with a registered capital of 650 million THB. The plant is located in Rayong next to to TPAC and TPCC. The company is engaged in applying the latest green technology in the development of engineering plastics. MEGT is a part of MGC’s and TDIC’s long term target of achieving carbon neutrality.

CORE VALUES

Stakeholders

เราให้ความสำคัญกับผู้มีส่วนได้ส่วนเสียทุกกลุ่ม และมุ่งสร้างความไว้วางใจระยะยาว

Ethics, Equity, Transparency

ดำเนินธุรกิจด้วยความซื่อสัตย์ เป็นธรรม และโปร่งใส

Human Rights, Diversity, Inclusion

เคารพสิทธิมนุษยชน ส่งเสริมความหลากหลายและการมีส่วนร่วม

Compliance, Governance, Risk Management

ปฏิบัติตามกฎหมายและหลักธรรมาภิบาล พร้อมบริหารความเสี่ยงอย่างมีประสิทธิภาพ

Environment

มุ่งมั่นในการดำเนินธุรกิจอย่างยั่งยืนและรับผิดชอบต่อสิ่งแวดล้อม

MESSAGE FROM THE EXECUTIVE

TPAC President :

Welcome and thank you for visiting our website.
Thai Polyacetal Co., Ltd. (TPAC) was established in 1995 as a joint venture between Mitsubishi Gas Chemical Co., Inc. and TOA Dovechem Industries Co., LTD.
We started our commercial operation in 1997 as the first polyacetal manufacturer in ASEAN region under our brand name ‘IUPITAL’.
Since then, we TPAC have supplied our excellent products which bring customers their satisfaction for a long time.
And now, we are making best effort to create and help shared value via our activity as well as our products.

We are always staying with you.

Mr. Kazuya Yonemura
TPAC President

TPCC President :

Through polycarbonate resin business, we will create valuable products and services that meet global needs, thereby contributing to the development of society.
This is my motto in my life. “We should work hard not for the company, but for ourself with a dream, and we will become the person we want to be. The company will also grow and along with us”

Mr. Tatsuhide Hosomi
TPCC President

MEPT President :

Through engineering plastics business, we will create valuable products and services that meet customer needs, thereby contributing to the development of Thai society.

Mr. Shuichi Tamura
MEPT President

MEGT President :

MGC Engineering-Plastics Green Technology (Thailand) Co., Ltd. was established in 2024 as a joint venture between Mitsubishi Gas Chemical Co., Inc. and TOA Dovechem Industries Co., Ltd.
Based on research and development in engineering plastics, we aim to create value for our customers and contribute to a sustainable future.

Mr. Mikihiro Niuchi
MEGT President

Director and Plant Manager of TPAC :

For three decades, our company has proudly operate as a Japan–Thai joint venture, combining Japanese precision& challenge engineering plastic technology with Thai staff innovation and dedication. Since our founding, we have specialized in the production of high quality polyacetal (POM), delivering advanced materials that meet the demanding requirements of global industries. We committed to safety, compliance, and sustainability in every stage of production in Thailand.

We strive to be the driving force behind Thailand’s engineering plastics industry, empowering businesses to transition from conventional materials to advanced polymers. By promoting innovation, sustainability, and reliability, we aim to strengthen Thailand’s role in the global engineering plastics market.

Mr. Soontorn Tippayaratsoontorn
Director and Plant Manager of TPAC

Director and Plant Manager of TPCC :

We are committed to excellence, innovation, and sustainable growth. Our team works tirelessly to deliver high-quality products and services that meet the evolving needs of our customers and partners. As Director and Plant Manager, I am proud to lead a dedicated workforce that shares a vision of continuous improvement and operational excellence. Together, we are building a future defined by integrity, performance, environmental responsibility, and progress.

Mr. Kampol Khongvittayanon
Director and Plant Manager of TPCC