Office Add：Rm.2211 Lindun Tower, No.100 North Hengfeng Rd.,

                         Shanghai 200070, P.R.China

                  Tel：+86 21  66580045   66580046

                 Fax： +86 21 66580047    66580043

                Web：http://www.topken.com      http://www.silicafume.cn

               Email：xisonglin@topken.com       info@topken.com

            Contact： Mr. Xi Songlin      +86 1370 196 3316

                            Ms. Zoe  Zhao     +86 1391 675 4337