Thailand: industry on the ground
Natural gas makes up about 27% of Thailand's total energy supply and fuels roughly 64% of electricity generation, so gas processing, pipelines and power plants dominate classified-area work.
A Zone 1 and Zone 21 handset for the people inside the Thai petrochemical cluster: shift operators on the Map Ta Phut crackers, reliability engineers at Sriracha, jetty and tank farm crews along the Rayong coast, and the safety and IT departments that rule on what passes a gate. Buyers searching for an IECEx mobile phone supplier for Thailand can take the datasheet and the certification schedule for the IS-04Z1 now; supply follows certification.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. An IECEx mobile phone for Thailand cannot be bought yet: the SAMS IS-04Z1 is pre-launch (certification in progress, no certificate issued), and the datasheet, certification schedule and safe-area evaluation units are available now.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Certificate of conformity | Number checkable on the IECEx online register | In progress; not issued |
| Standards edition | The IEC 60079 edition the certificate cites | Stated on the certificate when issued |
| Schedule of conditions | Limits of use, batteries and accessories | Published with the certificate |
| Where it applies | Thailand: Chachoengsao, Gulf of Thailand, Map Ta Phut Industrial Estate | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Thailand. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
Operators and classified areas drawn from the SAMS Thailand market guide.
Natural gas makes up about 27% of Thailand's total energy supply and fuels roughly 64% of electricity generation, so gas processing, pipelines and power plants dominate classified-area work.
The transport sector uses nearly half of oil products and oil is 41% of total energy supply, so fuel depots, filling terminals and distribution sites occur across the whole country.
As of March 2024 Thailand had 34 active petroleum projects across 47 oil fields in the Gulf of Thailand, so offshore platform and supply-base work is a large part of upstream activity.
The Eastern Economic Corridor, set up in 2017, spans three eastern provinces covering 13,266 square kilometres, and follows the earlier Eastern Seaboard programme that financed ports, roads, waterworks and industrial parks.
IECEx is the international scheme for certifying equipment used in explosive atmospheres. A certificate of conformity is issued by an accredited certification body against a specific edition of the IEC 60079 standards and carries a schedule of conditions of safe use. It is not a legal requirement in most countries on its own, but many national schemes accept it as the technical basis.
The IECEx certificate for the IS-04Z1 is in progress and has not been issued. The marking target is Ex ib IIC T4, the intrinsic safety concept for Zone 1 gas with the hardest gas group (IIC) and a 135 °C temperature class.
In Thailand. IECEx is the scheme most visiting contractors and international owners at Map Ta Phut and Sriracha are likely to know, including ExxonMobil and PTTEP offshore. A certificate of conformity with its schedule of conditions gives them a common reference beside the Thai approval route. The IS-04Z1 IECEx certification is in progress.
Nothing can be bought for Thailand today: the IS-04Z1 is pre-launch, and SAMS will supply end users through authorised distributors once certificates exist. What a buyer can do now is take the specification, ask for the written certification schedule and arrange a safe-area evaluation, so that the right local channel contacts you at launch.
The technical specification, marking target and conditions of use, sent by email.
Which certificates are in progress, in what order, and what is still to be confirmed.
Evaluation units can be used for connectivity, MDM enrolment and workflow testing outside classified areas.
Tell us the site, zone, gas group and quantity so the right authorised distributor can contact you.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
The market guide for Thailand covers Map Ta Phut Industrial Estate, Rayong industrial estates, Sriracha, Chonburi, Laem Chabang, among others. Site-level pages are linked below.
Through authorised distributors once certificates exist. Until then SAMS can send the datasheet and certification schedule and arrange safe-area evaluation units.
Many operators, particularly those with international ownership, work to IEC 60079 and accept IECEx or ATEX paperwork, but this is decided by each site's own safety procedure. Ask for the approved equipment list and supply the certificate and marking details with your request.
Gas processing plants, pipeline stations, LNG receiving terminals, power stations using gas and offshore platforms are typical examples, given that gas fuels about 64% of electricity. Zone classification is site specific, so request the hazardous-area layout drawings.
The sheet describes certification under way with IECEx, the TISI and the NBTC route. None has been issued yet. A buyer should ask for the schedule and check the final certificates against site and regulator requirements before use.
More on Thailand, and on other places in Thailand.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.