Shenzhen Zhongnuo Inspection & Technology Co., Ltd. specializes in consulting services for explosion-proof certification and coal mine safety certification.
Principles of Coal Mine Safety and Mine Safety Certification Application -- Shenzhen ZhongNuo Testing Technology Co., Ltd.
1. Concurrent submission of similar products
2. Multiple products share the same coal safety component
3. Electrical equipment pre-notification for complete unit declaration
4. Form the product and then declare it.

Do I need a factory audit to apply for the Coal Safety/Mineral Safety Mark? -- Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.
Necessary. Unlike the application for the explosion-proof certification, the control over the mining marking is strictly enforced.
Application for Coal Mine Safety and Mine Safety Certification requires a factory audit of the applicant company.

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 underground coal mine equipment.
Products listed in the safety certification directory for mining products must obtain a certification certificate. Individuals and entities are prohibited from selling, purchasing, or using mining products that are included in the safety symbol management directory but have not obtained a safety symbol.
The manufacturer of the product must undergo several steps to obtain a safety mark, including filling out an application form, preliminary review and qualification registration, evaluation, and issuance of the certificate.

How long does it take to apply for the Coal Safety/Mine Safety certification? -- Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.
Due to the relatively complex process for obtaining coal safety/mining safety certifications, while the Testing time is under our lab's control, everything else is done through online applications and reviews, with the timeline generally following the review schedule of the relevant authorities. According to the normal application process, the certification period for coal safety/mining safety is typically 6-7 months, subject to the client's product structure and the information provided by the client.
Coal Safety Certification and Mine Safety Certification Consulting Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.