Hot, humid and wet
The climate is equatorial, so ingress protection and charging routines are practical concerns.
Coal bed methane reserves of about 12.8 trillion cubic metres lie mainly in Kalimantan and Sumatra, which is a reminder that methane can accompany coal seams, though development has been limited. Hazardous-area work centres on fuel storage, coal handling and preparation, and mine power plants. An explosion proof mobile phone distributor in Kalimantan coal mining region would carry the IS-04Z1 to these buyers once certification completes.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Kalimantan coal mining region has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned 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 |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| Where it applies | Kalimantan coal mining region: Mine-site power generation, Coal loading terminals, Coal handling and preparation plants (dust, Zone 21) | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Kalimantan Mining. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
The climate is equatorial, so ingress protection and charging routines are practical concerns.
Kaltim Prima holds a 90,960-hectare concession across Sangatta and Bengalon and moves coal on a 13-kilometre conveyor to its Tanjung Bara port.
A Domestic Market Obligation requires coal miners to allocate 25 percent of production to local use at a fixed price, which shapes how much coal is railed and barged to domestic power stations.
Indonesia's significant coal deposits are in South Sumatra, East Kalimantan and South Kalimantan, and reserves are estimated to last over 80 years at current rates of extraction.
Indonesia's coal production reached a record 836 million tonnes in 2024, up from 775 million tonnes in 2023, and the country is the world's largest coal exporter.
East Kalimantan has a dry season from May to October and a rainy season from November to April; average humidity in 2013 was between 83 and 87 percent, with temperatures ranging from about 22 to 36 degrees Celsius.
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Kalimantan coal mining region. Open-pit coal sites have two main hazards: flammable vapour at fuel and lubricant stores, and combustible dust at coal handling and preparation. Explosion-proof blurs this. Intrinsic safety suits a gas handheld, while dust areas need a dust marking. The operator's classification decides.
SAMS is appointing authorised distributors ahead of the Q4 2026 launch. No territory has been granted for Kalimantan coal mining region yet and applications are reviewed company by company. Because a certified Ex device cannot be opened by an ordinary phone workshop without invalidating its certificate, SAMS looks for partners who can provide competent technical support and after-sales service locally.
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
Likely candidates are coal handling and preparation plants (dust, zone 21), fuel and lubricant storage, mine-site power generation, coal loading terminals. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Kalimantan coal mining region.
Kalimantan has a tropical climate with frequent heavy rain, so devices in open-pit and barge-loading areas face water, mud and dust together. Users typically want good ingress protection and cleaning routines; check the specification against the mine's rules.
Indonesia has a Domestic Market Obligation requiring miners to allocate a share of production, 25 percent in the cited rule, to the domestic market. It affects shipping and customer mix rather than device choice, but it explains continuous coal handling at ports and power plants.
Open-pit coal sites mainly raise dust hazards at handling and preparation plants, plus gas hazards at fuel storage. The sheet does not assume methane. The operator's classification decides. Confirm with the site operator's HSE team which areas apply.
Other guides for Kalimantan Mining, other places in Indonesia, and the pages behind them.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Name the site and the operator and we will send what is available before launch.