May 15th, one of our nice customer from South America sent us a formal evaluation document showing that, we are their satifying battery provider, which encouraged us to think more and do better for each battery project, to work more closely together with our customers to get them exactly what battery packs they need, with our over 10 years experience in the rechargeable battery industry, and the reliable sources to the leading cells in China and the name brand battery cells from korea and Japan.