Mandarin technical coordination
Mandarin-speaking staff can discuss requirements, drawings, BOQs, and technical solutions directly.
Project & maintenance contact
Contact GTI
Share an initial requirement by WhatsApp, business email, or online message; Mandarin technical coordination is available for drawings, BOQs, and solutions.
No complete BOQ or drawings yet? Start with the city, facility type, and the system or problem.
Contact channels
Choose the most suitable route to start the discussion.
WhatsApp is the fastest route, email supports formal correspondence, and the online message channel lets you leave a question and reply contact.
Quick discussion through WhatsApp Business
Start with the facility type, general location, project stage, system requirement, and target timing.
Open WhatsApp Business →Business email
Use email for meeting invitations, requirement summaries, or initial correspondence that needs a written record.
ptgti@tj3w.comCompany region
Based in Jakarta. Contact GTI to arrange a meeting or site survey.
Jakarta, IndonesiaOnline message
Leave your question together with a WhatsApp number or email address. The GTI team will review it and reply through the contact you provide.
Write a message →04 · Online message
Leave your consultation requirement.
Describe the requirement briefly and provide at least one reply contact. Do not submit passwords, credentials, sensitive images, or documents through this form.
Before contacting
Prepare enough information to determine the next step.
A concise initial brief helps GTI decide whether the next step is a survey, design, quotation, implementation, or maintenance.
Information security
Start with a business summary, not sensitive technical data.
Suitable for the first contact
- Project type, city, stage, and objective
- System types and a general problem description
- Whether you need a survey, design, quotation, or maintenance
Do not send in the first contact
- Passwords, remote-access credentials, IPs, MACs, or serial numbers
- Detailed topology, complete asset lists, or sensitive CCTV footage
- Identity documents, signatures, original contracts, or another person's data
Start with the real requirement at your site.
Use WhatsApp Business for a fast response or leave an online message without uploading files.