Zhang Alex

Launched in 2016 as 591Lab International. We are committed to offering our clients excellent experience on ISACA, PMI, Cisco, and Huawei examination preparatory services.

We focus strongly on popular exams and exam preparation services. We provide our customers with the complete training needed to earn the best scores for their respective Management and IT career certifications. We have a huge list of satisfied customers with top grades to back up all the claims we make.

We have the best Instructors in China who are both certified & professional

We firmly believe your satisfaction is a testament to our services

We make your Certification journey both intensive & enjoyable online, all from the comfort of your own home.

Our instructors and staff dedicate themselves to help and support candidates to pass the PMP, CISA, CISM, CISSP, Cisco and Huawei certification exams