Jakarta Office

PT. Hartono Istana Teknologi
Jl.Aipda KS Tubun II / 15   
Jakarta 11410, Indonesia

Phone:(62-21) 5322663, 5330987
Fax    :(62-21) 530225

Kudus Factory

PT. Hartono Istana Teknologi
Jl.KHR Asnawi PO Box 126    
Kudus 59332, Indonesia

Phone:(62-291) 433255, 433266
Fax    :(62-291) 431001, 431030

Semarang Factory

PT. Hartono Istana Teknologi
Jl.Raya Semarang Demak Km 9
Sayung - Semarang 59563 Indonesia

Phone:(62-24) 6592220
Fax    :(62-24) 6592225

Thailand Office

POLYTRON Thailand Co., Ltd
514/17 SOI Ramkamhaeng 39 (Tapelila), Ramkamhaeng Road, Kwaeng Wangthonglang, Khet Wangthonglang, Bangkok 10310, Thailand

Phone:(66-2) 1582696
Fax    :(66-2) 1582697