Gul yard
ST Engineering bought the roughly 141,000 square metre Gul yard in 2023 for ship repair, in addition to its Benoi yard, which is mainly for shipbuilding.
Basic worker residential blocks are provided at Benoi Sector and Pioneer Road, so much of the yard workforce lives close to the sites and arrives on foot or by company transport. Seatrium and ST Engineering shipyards at Gul, Benoi and Pioneer Sector create classified areas during vessel repair and coating work. If you are specifying a rugged smartphone for Pioneer, Jurong Industrial Estate, 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 Pioneer, Jurong Industrial Estate: 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 |
|---|---|---|
| Ingress protection | IP65 to IP68 sealing | IP68 design |
| Drop and shock | A stated drop height onto concrete | Specification on request |
| Explosion protection | A separate certificate and marking | In progress; not issued |
| Where it applies | Pioneer, Jurong Industrial Estate: Shipyard and marine work areas, Paint and coating shops, Fabrication yards | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Pioneer Industrial Area. 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.
ST Engineering bought the roughly 141,000 square metre Gul yard in 2023 for ship repair, in addition to its Benoi yard, which is mainly for shipbuilding.
The planning area has a population density of about 4 people per square kilometre and sits within the Jurong Industrial Estate developed by JTC.
Seatrium lists Pioneer Yard at 50 Gul Road, Tuas Yard at 51 Pioneer Sector 1 and Benoi Yard at 15 Benoi Road, three separate gates within the same western industrial belt.
Joo Koon MRT station opened on 28 February 2009 to serve Jurong Industrial Estate, and the East-West Line now runs further west to Tuas Link, so the estate has a direct rail link for staff.
Seatrium's Pioneer Yard has a 1,400 metre quay with 8 to 10 metres of depth, and a second yard adds a 350 metre quay, giving long continuous berths for vessels under repair.
Pioneer is bounded by Jurong West, Boon Lay, Tuas and the Jurong Strait, and has five subzones: Benoi Sector, Gul Basin, Gul Circle, Joo Koon and Pioneer Sector.
A rugged phone is built to survive water, dust, drops and rough handling, usually rated by an IP code and a drop specification. Ruggedness is an environmental property: it says nothing about whether a phone may be used where flammable gas or dust is present. That is decided by explosion-protection certification and marking.
The IS-04Z1 combines both: an IP68 sealed rugged build and a design for Zone 1 and Zone 21 (marking target Ex ib IIC T4). The explosion-protection certificates are in progress and none has been issued.
In Pioneer, Jurong Industrial Estate. Gul Basin is a shipyard and marine engineering zone in a tropical climate, so heat, humidity, rain and splash apply, with dust from fabrication. IP68 on the IS-04Z1 helps against water and dust. It is not explosion protection, and Ex marking and datasheet limits still apply.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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 designed to IP68 sealing, with glove-friendly controls. Ruggedness is not explosion protection: that depends on the certificates, which are in progress.
Likely candidates are shipyard and marine work areas, paint and coating shops, fabrication yards. 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.
Mainly shipyards: Seatrium's Pioneer, Tuas and Benoi yards sit in or beside the area, where tank entry, repair and coating work create temporary Zone 1 conditions on vessels. The estate also has general industry that is not classified, so ask each tenant for its own zoning.
Heat, humidity and heavy showers shorten battery life and test seals and connectors, particularly on open decks and quays. Choose devices with suitable ingress protection and a proper charging routine, and keep spare certified batteries in a dry safe area.
Seatrium and ST Engineering's Gul yard are the operators named for the area. Individual Seatrium yard names and their presence here were not confirmed, so ask the company which yard serves your project. Older references to Keppel-owned yards are out of date.
Other guides for Pioneer Industrial Area, other places in Singapore, 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.