Is the electrician certificate issued by Henan tenant engineering materials valid?

Effective. The electrician certificate issued by Henan Knight Engineering Materials Co., Ltd. is true and effective. Henan Knight Engineering Materials Co., Ltd. (formerly known as Henan Knight Engineering Materials Co., Ltd.), founded on 20 1 1, is located in Kaifeng City, Henan Province, and is an enterprise mainly engaged in non-metallic mineral products industry.