About

A Leading Sanitaryware Raw Material Company Built on Refining Technology and Trust in Quality

Daejin Refinement Co., Ltd. specializes in the refining of clay and kaolin compounds for the sanitary ware industry.
With advanced refining facilities and strong production capabilities, Daejin delivers premium raw materials with consistent quality and dependable performance.

For over 30 years, the company has focused on continuous innovation and quality improvement,
developing signature products such as BQ, BQ-1, UR-B clay, and DK-B kaolin, which are now widely used by Korea’s leading sanitaryware manufacturers.
Today, Daejin supplies nearly 50% of the clay and kaolin used by Korea’s leading sanitaryware manufacturers.

As the industry moves toward higher-end products and faces rising energy costs, Daejin’s refined clay offers an efficient solution that enhances production yield and reduces overall costs.

Beyond product quality, the company values long-term trust and close collaboration with its customers.

By listening to their needs, Daejin strives to be a reliable partner that strengthens client competitiveness in a demanding global market.

Since 1978

Daejin's Journey, Shaped by Refining Technology

2020

  • 11 Expansion of 2nd Grinding Facility (Installation of Two Ball Mills)

2019

  • 05 Development of BQ Clay

2018

  • 07 Patent Registration for Clay and Molding Sand Manufacturing Method

2007

  • 05 Selected as an Official Export Company by the Korea Small and Medium Business Administration
  • 03 Commenced International Trade

2005

  • 11 Development of Kaolin Products and Completion of Storage Facility

2003

  • 09 Completion of Factory Expansion

1994

  • 09 Completion of Daejin Refinement's Second Plant

1986

  • 10 Development of Refined Clays RC-A and RC-B for Sanitaryware

1978

  • Establishment of Daejin Enterprise (Clay Mine Development)

Mission & Vision

Daejin Refinement Co., Ltd.

Setting the Standard for Refined Clay in Sanitaryware

Refined materials built on trust, value completed through quality.

We craft the essence of clay to shape tomorrow.

From Korea to the world — we refine the future.

Environment

Honest

Purity

Future

Head Office412-16, Mahanmunhwa-ro, Shinbuk-myeon, Yeongam-gun, Jeonnam, South Korea

Tel+82 61)473-1081~2

Emaildjclay@daejinclay.com

Copyrightⓒ2025 Daejin Refinement Co., Ltd. All Rights Reserved.

Privacy Policy

The company informs customers through the Privacy Policy about how the personal information provided is used and what measures are taken to protect personal information.

▶ Purpose of Collecting and Using Personal Information

- Identifying individuals, verifying real names, confirming intent to sign up, and ensuring age-restricted service usage based on service use.
- Fulfilling contracts related to service provision, such as billing for services provided, delivering content, purchasing and processing payments, and dispatching items or billing statements.
- Delivering notices, ensuring communication for handling complaints, and ensuring accurate delivery information for item shipments.
- Providing information on new services and offering personalized services.
- Facilitating smooth provision of high-quality services.

▶ Personal Information Collected

- Name, company name, email, address, contact number, mobile phone number, inquiry details, and other optional items.

▶ Retention and Use Period of Personal Information

- As a general rule, personal information is destroyed immediately once the purpose for its collection or provision has been fulfilled.
- However, for the purpose of ensuring smooth service consultations, the content of the consultation may be retained for 3 months after completion. In cases where other laws, such as the Act on the Consumer Protection in Electronic Commerce, require preservation, the information may be retained for a specified period.

▶ Procedure and Method for Destroying Personal Information

The company, as a general rule, destroys personal information without delay after the purpose of collection and use has been fulfilled. Information entered for membership or other purposes is transferred to a separate database (or, in the case of paper records, to a separate file) and stored for a certain period according to internal policies and relevant laws before being destroyed. Personal information transferred to a separate database is not used for any other purpose unless required by law. Personal information stored in electronic file formats is deleted using technical methods that prevent the recovery of the records.

Prohibition of Unauthorized Email Collection

Daejin Refinement Co., Ltd. prohibits unauthorized email collection.

The collection of email addresses posted on this website using email collection programs or other technical devices is prohibited, and violators may be punished under the Act on Promotion of Information and Communications Network Utilization and Information Protection.