Climate
Hot, wet tropical conditions at lowland sites; cooler and very wet in the Papua highlands.
In 2024 Indonesia was estimated to be the world's leading producer of mined nickel at 62 percent of global output, and second for tin at 19 percent and cobalt at 12 percent. Fuel storage, coal handling, process plants and smelters create hazardous areas, with dust areas at coal preparation and underground work at Grasberg. This page explains what to look for in an Ex-proof mobile phone for Indonesian mining regions, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Indonesian mining regions: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. 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 | Indonesian mining regions: Coal handling and preparation plants (dust, Zone 21), Fuel and lubricant storage, Underground mine areas | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Indonesia 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.
Hot, wet tropical conditions at lowland sites; cooler and very wet in the Papua highlands.
Large operations such as Grasberg, at about 4,100 metres elevation, rely on long supply chains by air, road and sea.
MIND ID is the state-owned mining holding company, and foreign-owned or partly foreign-owned operators include PT Freeport Indonesia, PT Tsingshan Steel Indonesia, PT Huafei Nickel Cobalt and PT Vale Indonesia.
Nickel laterite is processed in Indonesia by methods including high-pressure acid leaching, which brings pressurised acid and chemical handling areas into mine-site processing plants.
Mining is governed by Law No. 4 of 2009 as amended by Law No. 3 of 2020, and the Directorate General of Mineral and Coal under the Energy and Mineral Resources Ministry sets policy.
PT Borneo Alumina Indonesia finished an alumina refinery in West Kalimantan with a capacity of 1 million tonnes a year, starting operations in December 2024, and Freeport built a 0.6 million tonne copper smelter at Manyar in East Java.
“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 Indonesian mining regions. A marking check on a mine would first ask whether the area is gas or dust. Coal preparation plants are dust areas, Zone 21 in the sheet, while fuel stores are gas. The IS-04Z1 target marking, II 2 G Ex ib IIC T4, covers gas only, so dust areas need separate evaluation.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
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.
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, underground mine areas, smelter and process plant areas. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Typical examples are underground methane or coal-dust zones, fuel storage and workshops, explosives magazines, smelter and processing areas with gases or dust, and captive power plants. Each operator classifies its own site, so confirm the zones with the mine's safety department.
Yes. Smelters and acid-leach plants emphasise process gases, chemicals and high temperatures, while coal mines emphasise methane and combustible dust. The device choice and the area type differ, so ask each site for its classification and permit rules.
Remote operations rely on long supply chains, so a failed device may take time to replace. Plan spares, local service access and offline-capable apps. Check heat, wet and altitude conditions at each site. Confirm site rules with the operator.
Other guides for Indonesia 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.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.