Underground operations
Grasberg has three active underground mines (Grasberg Block Cave, Deep Mill Level Zone and Big Gossan) alongside the former open pit.
Timika, capital of Mimika Regency in Central Papua, is the service base for the Grasberg copper and gold mine run by PT Freeport Indonesia. Mozes Kilangin Airport at Timika has direct domestic flights to Jayapura, Nabire, Sorong, Makassar and Bali, plus short flights to interior districts of Mimika such as Jila, Tsinga and Alama. Distribution partners for Timika and the Grasberg mining district are being identified ahead of the Q4 2026 launch of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Timika and the Grasberg mining district 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. 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 |
|---|---|---|
| Marking | II 2 G Ex ib IIC T4 on the rating plate | Design target; not yet marked |
| EU-type examination certificate | Notified body number and certificate ID | In progress with TÜV; not issued |
| IECEx certificate of conformity | Number listed on the IECEx online register | In progress; not issued |
| Where it applies | Timika and the Grasberg mining district: Concentrate port and dewatering, Underground mine areas, Concentrator and process plant | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Timika Mining. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
A short profile of the site and the kinds of classified area that matter for portable equipment.
Grasberg has three active underground mines (Grasberg Block Cave, Deep Mill Level Zone and Big Gossan) alongside the former open pit.
Timika averages about 5,690 mm of rain a year in a tropical rainforest climate.
The Grasberg mine lies in Mimika Regency, Central Papua, near Puncak Jaya, and the original mine was built at about 4,100 metres above sea level, with the open pit rim at roughly 4,270 metres.
Early construction included a 116 km road and pipeline, a port, an airstrip, a power plant and a new town, so the operation is largely self-contained and supplied by sea and air.
Grasberg has a large open pit completed in 2019, three operating underground mines, the Block Cave, Deep Mill Level Zone and Big Gossan, and four concentrators, milling more than 72 million tonnes of ore in 2023.
Flotation reagents separate a copper-gold concentrate, which is piped as slurry through three pipelines about 100 km to the port of Amamapare, where it is dewatered, dried and shipped to smelters.
ATEX is the European legal framework for equipment used in explosive atmospheres (Directive 2014/34/EU). IECEx is the international certification scheme built on the IEC 60079 standards. Buyers outside Europe often ask for both: an IECEx certificate is the technical evidence most national regimes build on, while ATEX is the legal route into the European market.
For the IS-04Z1 both routes are in progress with TÜV in Germany and neither certificate has been issued. The marking target is II 2 G Ex ib IIC T4: equipment Group II (surface industry), Category 2 (Zone 1 gas), protection concept ib (intrinsic safety), gas group IIC and temperature class T4.
In Timika and the Grasberg mining district. A reviewer at Grasberg or Timika would expect certificate evidence matched to the marking, with its schedule of conditions. The IS-04Z1 evidence is in progress. A dual ATEX and IECEx route helps a large operation whose contractors and suppliers come from many countries.
SAMS is appointing authorised distributors ahead of the Q4 2026 launch. No territory has been granted for Timika and the Grasberg mining district 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 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.
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
Not yet. Both routes are in progress with TÜV in Germany and no certificate has been issued. Any listing that says otherwise is wrong.
Likely candidates are concentrator and process plant, fuel storage and distribution, concentrate port and dewatering, underground mine areas. 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 Timika and the Grasberg mining district.
Altitude, heavy rain, long underground haulage and remote supply make it demanding. Underground mines can have gas or dust, and surface plants have flotation chemicals, so confirm area classification with the operator and plan for battery life and spares.
The operation uses its own port at Amamapare, an airstrip and long access roads built for the mine, and Timika is the regional town. Expect long lead times, customs clearance in Indonesia and site security and induction procedures before devices go underground.
Grasberg sits at about 4,100 metres and the region is very wet, so temperature, condensation and battery behaviour matter. Check the rated operating range and sealing. IP68 is not explosion protection. Confirm site requirements with the operator.
Other guides for Timika Mining, other places in Indonesia, and the pages behind them.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.