Large concessions
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.
Kalimantan hosts some of Indonesia's largest open-pit coal mines, including Kaltim Prima Coal at Sangatta in East Kalimantan and Adaro's Tutupan mine in South Kalimantan. Hazardous-area work centres on fuel storage, coal handling and preparation, and mine power plants. Distribution partners for Kalimantan coal mining region are being identified ahead of the Q4 2026 launch of the IS-04Z1.
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.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| 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.
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.
Tutupan produced an estimated 36 million tonnes in 2023 and Sangatta about 41 million tonnes, so fleets and workforces are large and contractor-heavy.
State utility PLN plans additional coal-fired capacity and has begun co-firing biomass at 17 power plants, so mines and power stations are linked by long coal supply chains.
The coal industry is fragmented, with a few large producers and many small firms, so equipment rules and safety culture can vary widely between neighbouring mine sites.
Coal dust is a recognised health and handling issue in Indonesian mining, so dust control, cleaning and sealed enclosures matter for electronics used around crushers, conveyors and stockpiles.
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.
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Kalimantan coal mining region. A marking check would first separate gas from dust. Coal preparation plants are Zone 21 dust areas in the sheet; fuel stores are gas. The IS-04Z1 target marking, II 2 G Ex ib IIC T4, addresses gas only, so dust areas need separate assessment.
Distribution of the IS-04Z1 is by authorised partners only, and SAMS has not yet granted a territory for Kalimantan coal mining region. Each application is reviewed on its merits. Because opening a certified Ex handset in an ordinary workshop invalidates its certificate, the partner must be able to support and service the device locally.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
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.
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
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.
More on Kalimantan Mining, and on other places in Indonesia.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.