Contact Person : Mr. Ir. Tony Hermawan Oei Telephone : Mobilephone : Fax Number : Address : Graha Famili N-50, Surabaya, 60227 | Jl. A. Yani no. 12, Jombang, 61415 | Jl. Gatot Subroto no. 37, Jelak Ombo, Jombang Fax : 62-31-7388094 Zip/Post Code : 60227-61415