Merger
Sembcorp Marine and Keppel Offshore & Marine combined as Seatrium in 2023.
Singapore's major shipyards are run by Seatrium, with yards at Admiralty, Benoi, Pioneer, Tuas and Tuas Boulevard, and by ST Engineering. Repair, conversion and newbuild work brings Zone 1 conditions into tanks, cargo spaces and paint areas. If you are specifying an ATEX and IECEx mobile phone for Singapore shipyards, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Singapore shipyards: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
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 |
|---|---|---|
| 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 | Singapore shipyards: Vessel tank spaces, Dry dock and repair work, Paint and coating shops | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Singapore Shipyard. 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.
Sembcorp Marine and Keppel Offshore & Marine combined as Seatrium in 2023.
Its official contact page lists Admiralty Yard, Benoi Yard, Pioneer Yard, Tuas Yard and Tuas Boulevard Yard in Singapore.
Heat, humidity and frequent heavy showers affect work on open decks, quays and docks all year round.
Seatrium's repair and upgrade work covers LNG and LPG carriers, cruise ships, ferries, floating production vessels, jack-ups, tankers, container ships and heavy-lift vessels.
The Tuas Boulevard Yard has a graving dock about 350 metres long and 66 metres wide, suited to the largest tankers and floating production units.
In 2002 Keppel Shipyard was combined with Keppel FELS and Keppel Singmarine to form the Keppel Offshore and Marine group, which became part of Seatrium in 2023.
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 Singapore shipyards. Vessel owners, class surveyors and yard crews from many countries meet in Singapore's yards, so a reviewer would expect ATEX and IECEx evidence for handhelds entering tanks. The IS-04Z1 certification is in progress and only a datasheet is available now. Each yard safety department decides which certificates and conditions it accepts.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
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.
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 vessel tank spaces, dry dock and repair work, paint and coating shops, offshore conversion. 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.
Large graving docks hold very big vessels and many contractors at once, so crowding, crane lifts and hot work overlap. Hazardous-area controls are managed per vessel by the yard's safety team and the owner's representative.
Seatrium's yards at Admiralty, Benoi, Pioneer, Tuas and Tuas Boulevard are the large repair and conversion sites, and other yards operate in the Jurong area. Zone 1 conditions arise inside tanks and pump rooms during repair and coating work.
Not automatically. Tank entry and hot work normally follow per-vessel gas-free and permit procedures set by the yard, and some yards still require certified equipment in certain spaces. The IS-04Z1 has no certificate yet. Ask the yard safety department which rule applies.
More on Singapore Shipyard, and on other places in Singapore.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Name the site and the operator and we will send what is available before launch.