Q: What is the corporate organization and ownership of DBG? 

A: DBG Technology Co., Ltd. is a private company headquartered in Hong Kong. The Hong Kong office is in charge of international finance, import, export, and logistics services.

The main manufacturing facilities are located in Huizhou, Guangdong, China. DBG is short for Daya Bay Guanghong Electronics Co., Ltd.

DBG founder and CEO is Mr. Tong Kin Hing, who holds more than 50% the company’s shares.

To see a map of DBG locations and a listing of contacts, visit DBG Locations & Contacts.

Q: Who is Mr. Tong?

A: Mr. Tong was formerly a manufacturing executive at Sanyo. In 1994, he used the rigorous Japanese quality disciplines he learned at Sanyo to start DBG in China. One of DBG’s first customers was Sanyo.

In addition to being DBG’s founder and CEO, Mr. Tong is Founder and Chairman of the IPC China EMS Steering Committee and the Executive Director of Guangdong Overseas Chinese Enterprise Association.

Q: Does DBG comply with all RoHS regulations and properly manage all hazardous wastes, wastewater discharges, and air emissions?

A: Yes. In addition to RoHS, DBG is in full compliance with CE REACH Environmental Standards.

Q: How does DBG protect our company’s intellectual property during EMS stage?

A: DBG values each and every client’s IP, starting with our strict compliance to your NDA.

The following are just some of the steps we take to protect your product intellectual property…and our 20 year-old stellar reputation:

  1. We encourage you to include all of your patents (filed, pending, or awarded) into our manufacturing (EMS) agreements. Also include all other IP trade secrets that will need protection during the project: trademarks, copyrights, industrial designs, production techniques, product schedules, etc.
  2. For joint  manufacturing projects, we will together develop agreements as to how your IP will be protected.
  3. We will exclusively use the code names you provide for all of your new products.
  4. We will track your confidential documents you share with our EMS team using your system of unique document identifiers (e.g., numbers).
  5. All pre-production through production, whether developed by you or DBG ,should have unique ID numbers for tracking.
  6. We have internal security checkpoints with metal detectors throughout the facility.

We are eager to address any and all of your IP protection issues: call Ashley Wong at (+852) 2334 0333.

Q: Describe your selection criteria for qualifying suppliers.


  1. Using our supplier quality qualifications checklist, we collect data necessary to determine a vendor’s initial eligibility.
  2. We compare our findings to externally available information on the supplier.
  3. We have an on-site audit of manufacturing and quality systems, including quality assurance records.
  4. When we buy from a qualified supplier, we perform audits on incoming materials, including dimensional, visual, and functional inspections.
  5. We record and chart the quality measurements of inspected properties, with alarms set for significant deviations. All supplier data is fed into our IQC (Incoming Quality Control) program. We provide feedback to suppliers when there are opportunities for their improvement. 

Q: How do you monitor ongoing compliance to quality standards?

A: We thoroughly audit and record defect data during all manufacturing processes, using TPS, Six Sigma, QCC and 7S disciplines.

Q: Has DBG ever had epidemic failures resulting in field recalls?

A: No. Never. Our DPMOs are consistently below 100 (the world-class metric).

Q: Does DBG invest in strategic suppliers?

A: No. There are numerous high-quality suppliers nearby; the field is very competitive and our direct investment is not required. Plus, we need to avoid any conflict-of-interest: we act in the best interest of our EMS customers.

Q: How does DBG differentiate itself from its competitors?

A: DBG is a EMS with a Japanese quality culture standard combined with Chinese labor efficiency and a sophisticated, vetted, local supply chain network.

Concrete examples of our commitment to quality disciplines include $20 million annual upgrades to equipment and facilities; a 5-year depreciation cycle on manufacturing equipment; and 37 patents for pioneering EMS manufacturing processes.