Name: Mr. DAVID TAN [Director/CEO/General Manager]E-mail:sls_sbjm@yahoo.comPhone Number: Mobile Number: Fax Number: Address: IR.H.JUANDA BARU NO.71 MEDAN 20158, Sumatera Utara IndonesiaHp : ( AS ) 0853 702 04 888 - ( XL ) 0878 674 04 888 - ( FLEXY ) 061 - 77 557 705