Ownership
Shell sold the Bukom refinery and Jurong Island chemical units to CAPGC, a Chandra Asri and Glencore joint venture, on 1 April 2025; the site now trades under the Aster name.
Pulau Bukom Refinery · intrinsically safe
Intrinsically Safe Smartphone in Pulau Bukom Refinery
Pulau Bukom is a restricted-access island about 5 km south of mainland Singapore, home to a 237,000 barrel-per-day refinery and an ethylene cracker. Since April 2025 the complex has been owned by CAPGC and operated as the Aster Energy and Chemicals Park, so process units create Zone 1 areas. This page explains what to look for in an intrinsically safe smartphone for Pulau Bukom, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicintrinsically safe
DeviceSmartphone
RouteSpecification
WherePulau Bukom Refinery
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Pulau Bukom: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · intrinsically safe
Checklist: intrinsically safe smartphone for Pulau Bukom
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Level of protection | ia, ib or ic matched to the zone | ib, for Zone 1 |
| Entity parameters | Uo, Io and Po within the device limits | Published with the certificate |
| Accessories | Chargers and cases certified with the device | Defined at certification |
| Where it applies | Pulau Bukom: Refinery process units, Ethylene cracker, Crude and product tank farms | Classified by the site operator |
Product · Pulau Bukom Refinery
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Pulau Bukom Refinery. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Pulau Bukom
Pulau Bukom: where the IS-04Z1 would work
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Operators and companies on site
- Aster Chemicals and Energy (CAPGC)
Classified areas to expect
- Refinery process units
- Ethylene cracker
- Crude and product tank farms
- Jetties
Local conditions · Pulau Bukom
Conditions in Pulau Bukom that affect handheld equipment
Island access
Access is restricted to personnel with security passes, and staff travel by ferry, so equipment is usually checked before the crossing.
Field notes · Pulau Bukom
More about Pulau Bukom that matters for portable equipment
Pulau Bukom: climate and equipment wear
Singapore's equatorial climate gives consistent heat and humidity with frequent heavy showers, which affects open-air process plant, tank farms and jetties year round.
Pulau Bukom: logistics and access
Security passes are issued only to personnel working on the island, and a ferry from the Pasir Panjang ferry terminal, run by Tian San Shipping, serves it, so visitor transfers must be arranged in advance.
Pulau Bukom: geography and layout
Pulau Bukom is a restricted-access island of about 145 hectares, roughly 5 km south of mainland Singapore in the Singapore Strait, with a small companion islet to its south.
Pulau Bukom: industry on the ground
Singapore's energy and chemicals sector is its second-largest manufacturing sector, so the island's refinery and cracker sit within a national cluster of more than 100 chemicals companies.
The term · intrinsically safe
What “intrinsically safe” means for a smartphone
Intrinsic safety limits the electrical and thermal energy in a circuit so that neither a spark nor a hot surface can ignite a gas or dust atmosphere, even when a fault occurs. The ib level, used for Zone 1, tolerates one fault. It is the usual way to make a handheld device that a worker carries continuously through a hazardous area.
The IS-04Z1 is designed on this principle for Zone 1 and Zone 21 (marking target II 2 G Ex ib IIC T4). Intrinsic safety is a design basis, not a certificate: certification is in progress and none has been issued yet.
In Pulau Bukom. Rounds across tank farms, cracker units and jetties involve a lot of walking, photographing and logging in classified areas. A handheld intrinsically safe device is intended to let an operator capture readings and images. That depends on certification, which is in progress, and on the operator's own rules.
The route · specification
Specifying an intrinsically safe smartphone for Pulau Bukom Refinery
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Pulau Bukom Refinery
Frequently asked questions
Can we buy an intrinsically safe smartphone in Pulau Bukom Refinery today?
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.
What does an intrinsically safe smartphone in Pulau Bukom Refinery cost?
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.
What does ‘intrinsically safe’ mean for the IS-04Z1?
The circuits are designed to limit energy so a spark or hot surface cannot ignite a gas or dust atmosphere, even with one fault (level ib, Zone 1). Certification of that design is in progress.
Which areas at Pulau Bukom would use it?
Likely candidates are refinery process units, ethylene cracker, crude and product tank farms, jetties. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Is intrinsically safe the same as explosion proof?
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.
Is the Bukom site connected to Jurong Island?
Yes. A 5 km subsea pipeline links Aster Bukom to Aster's chemical complex on Jurong Island, so the two sites run as one integrated operation. Expect shared safety standards between sites, but confirm site-specific rules with each location.
What process areas are on Bukom?
Aster describes Bukom as a fully integrated site focused on refining and ethylene production. That means crude units, cracker furnaces, tank farms and jetties, where Zone 1 and Zone 2 gas areas are typical. Exact zoning is set by the operator's area classification.
How does island access affect bringing handhelds to Bukom?
The site restricts access to personnel with security passes, and staff travel by ferry, so equipment is usually checked before the crossing. Ask the operator's security and HSE teams what device checks apply, and plan enrolment and charging before travel. Confirm the current process with the site operator.
Related guides
Keep exploring
Related guides for Pulau Bukom Refinery and for Singapore.
ATEX and IECEx Mobile Phone in Pulau Bukom RefinerySame place, different guide
Hazardous Area Mobile Phone Distributor in Pulau Bukom RefinerySame place, different guide
Ex-Proof Mobile Phone Distributor in Pulau Bukom RefinerySame place, different guide
IECEx Mobile Phone in Pulau Bukom RefinerySame place, different guide
Explosion-Proof Mobile Phone Distributor in Pulau Bukom RefinerySame place, different guide
Rugged Mobile Phone Distributor in Pulau Bukom RefinerySame place, different guide
ATEX and IECEx Mobile Phone Distributor in Singapore MarineElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Tuas Industrial ZoneElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Keppel ShipyardElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Pioneer Industrial AreaElsewhere in Singapore
Singapore market guideCertification route and regulators
All guides for SingaporeEvery route we cover
Certification statusWhat is in progress
Enquiry · Pulau Bukom
Ask about the IS-04Z1 for Pulau Bukom, Singapore
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Pulau Bukom
Launching Q4 2026
Planning for Pulau Bukom Refinery?
Name the site and the operator and we will send what is available before launch.