Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof and coal safety certifications.
Does the Coal Safety/Miner Safety mark require an annual inspection?
The Mark Management Authority conducts supervisory inspections annually for enterprises holding the Coal Safety/Mine Safety Mark.
Generally, the company is notified in advance of the annual supervision and review to prepare for the assessment, with relatively strict requirements.

What is Coal Safety Certification? How do companies apply for Coal Safety Certification?
Coal Mine Safety Certification is a mandatory safety certification for equipment and products used underground in coal mines, implemented through a "product testing + factory audit" approach.
We must conduct both product testing and on-site audits of the production facilities for the products being applied for, as well as annual supervisory reviews, which is commonly referred to as factory inspections.
Product testing requires compliance with the coal safety standards, such as electrical products needing to meet explosion-proof requirements in coal mine gas environments, while also adhering to product performance standards.
Factory audits primarily focus on the ISO9001 production quality system, with additional requirements from the Mine Products Safety Mark Implementation Rules. As a result, applicants must have their own production factory or OEM factory.
Note that not all products are eligible for the coal safety certification through the OEM application process.
The Anbang Center is the issuing and inquiry authority for the Coal Safety Certification.
Shenzhen ZhongNuo Inspection offers coal safety certification and mining safety consulting services, well-versed in the entire certification process and requirements. With a team of explosion-proof technology engineers and factory audit specialists, we can facilitate a quick and convenient application for coal and mining safety certifications.
Our successful cases include light boxes, remote controls, air compressors, fiber optic temperature measurement devices, sensors, mobile phones, thermal imaging cameras, and more. If you have any needs in this area, feel free to DM us anytime for further discussion!

Coal Mine Safety Sign Certification is a mandatory certification implemented by the Coal Mine Safety Sign Office for items used underground in mines. Any product listed in the Coal Mine Product Safety Certification Catalog must obtain a certification certificate.
Products with Coal Safety/Mineral Safety certification can affix the MA/KA mark. Individuals and entities are prohibited from selling, purchasing, or using mineral products included in the safety mark management catalog without obtaining the safety mark.
Manufacturers applying for a safety mark must complete several steps, including filling out an application form, preliminary review and qualification registration, evaluation, and certification issuance.

We now have the explosion-proof 3C certification. How can we transition to the coal mine safety or mine safety certification? -- Shenzhen ZhongNuo Testing Technology Co., Ltd.
In China, explosion-proof 3C certification/excel certificate and coal safety/mining safety belong to different management systems, and the product application locations are also different.
Two certificates belong to different certification systems and are mutually exclusive. Regardless of which certificate is held,
Additionally, all certificates must be re-applied for according to the new product application process. Similarly, if there is a Coal Safety/Miner Safety certification,
Obtaining a防爆 certification or防爆3C certification also requires reapplying according to the new application process.
Coal Safety Certification and Mine Safety Certification Consultancy Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.