Commitments and Guarantees of After-Sale Service

In order to further improve products quality, promote CHAC¡¯s status in both international and domestic markets and also heighten
products¡¯ reputation among customers, implement the aim of ¡°To Provide Professional Products to Our Customers¡±, CHAC
Technology Co. Ltd., make solemn commitments to all communities of society and customers.

1,After receiving customer¡¯s complaint of products, the local distributor should reply within 8 hours; If the problem needs to be
solved on-site, we promise to send professional service personnel within 48 hours and won¡¯t leave until the problem is resolved.

2,We promise to obey the ¡°Three Guarantees¡± principle. In the time of ¡°Three Guarantees¡± , if the problem of product is indeed
caused by quality, we will perform our obligation prescribed in the ¡°Three Guarantees¡± strictly. If product which is exceeding
the time of ¡°Three Guarantees¡± needs to be repaired, we promise to provide repairing service.

3,If customers need technical training, we will make all our efforts to help them train staff of operating, maintaining and repairing.
For important customers we will pay our visit and provide tracking service of quality.

4,To investigate customers of products¡¯ quality regularly. To register, deliver, analyze, handle and react promptly to customers¡¯
letters, phone calls and visits, etc.. To improve products¡¯ function according to customers¡¯ requirement, so that to improve quality
of products.

We strictly obey the ¡°Law on Product Quality of P.R.C.¡± and shoulder the responsibility of producers. Our products quality commitments are insured by PICC.