Shenzhen ZhongNuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof certification and coal safety certification.
Does a product with an explosion-proof certificate still need a coal safety certificate?
The explosion-proof certificate and coal safety certificate are applicable to different locations.
Explosion-proof certificates generally refer to facilities used in places where explosive gases and dusts are present, excluding coal mine shafts.
Coal Safety Certificate refers to the safety certification mark for equipment and products used underground in coal mines.
So, whether to apply for an explosion-proof certificate or a coal safety certificate depends on where the product is used.
If used only in non-mining explosive gas and dust environments, a防爆 certification is sufficient.
If coal mine operations are involved, a coal safety certificate is mandatory; the two certificates are not mutually applicable.
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What is the Coal Safety Certification?
Coal Mine Mark Certification (abbreviated as MA, KA Certification) is a mandatory certification implemented by the Coal Mine Safety Mark Office for products used underground in coal mines.
All products listed in the safety certification catalog for mining products must obtain a certification certificate. Individuals and entities are prohibited from selling, purchasing, or using mining products included in the safety mark management catalog that have not obtained a safety mark.
Manufacturers applying for a safety mark must go through several steps, including filling out an application form, preliminary review and qualification registration, evaluation, and issuance of the certificate.

We now have the explosion-proof 3C certification, how can we convert it to the Coal Mine Safety or Mine Safety certification? -- Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.
In China, explosion-proof 3C certification/exemption certificate and coal safety/mining safety certifications belong to different management systems, and are used in different locations. The two certificates are part of different certification systems and are relatively independent. Regardless of which certificate is held, the other certificate needs to be re-applied for according to the new product application process. Similarly, if a coal safety/mining safety certification is obtained, applying for an explosion-proof exemption certificate or explosion-proof 3C certification also requires re-applying according to the new application process.

The domestic coal safety certification system is still quite strict.
A combination of type testing and factory production system audit is employed to ensure the applicant company's capability to ensure product production and capacity.
Even after obtaining the coal safety certification, the company must undergo an annual supervision and evaluation by the Safety Standardization Center.
Coal Safety Certification and Mine Safety Certification Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.