CNOOC: industry on the ground
A 2019 national science award recognised CNOOC's exploration of a deep, large-scale condensate gas field in the Bohai Bay Basin, which is a major offshore production area.
CNOOC · ATEX and IECEx
ATEX and IECEx Mobile Phone for CNOOC
CNOOC is a Beijing-headquartered state-owned company, established in 1982, focused on offshore oil and gas. Its listed arm, CNOOC Limited, reported record net production of 2.13 million barrels of oil equivalent per day in 2025, mainly from Bohai and the South China Sea. This page explains what to look for in an ATEX and IECEx mobile phone for CNOOC, 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 topicATEX and IECEx
DeviceMobile Phone
RouteSpecification
WhereCNOOC
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for CNOOC: 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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · ATEX and IECEx
Checklist: ATEX and IECEx mobile phone for CNOOC
| 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 | CNOOC: Offshore production platforms and FPSOs, Onshore terminals, Refinery and petrochemical plants | Classified by the site operator |
Product · China
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 China. 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 organisation · CNOOC
Working with China National Offshore Oil Corporation (CNOOC): sites and classified areas
The main sites and the hazardous-area types a portable device is likely to meet at this organisation.
Sites and areas
- Bohai Sea
- South China Sea
- Huizhou refinery and Daya Bay petrochemical zone
Classified areas
- Offshore production platforms and FPSOs
- Onshore terminals
- Refinery and petrochemical plants
Supplier approval · CNOOC
Supplier registration at CNOOC
Supplier registration and equipment approval are run by the organisation itself; confirm current requirements with its procurement and HSE teams. The Ex certificate and an organisation's own vendor or engineering approval are two separate timelines; SAMS is working towards both and holds neither today.
Field notes · CNOOC
More about CNOOC that matters for portable equipment
CNOOC: who works there
CNOOC is the third-largest national oil company in China, owned by the state through SASAC, with CNOOC Limited and China Oilfield Services as its listed subsidiaries.
CNOOC: projects and investment
CNOOC Gas and Power is described as China's largest LNG importer and terminal operator, so LNG receiving terminals form a major class of its cryogenic and gas hazardous areas.
CNOOC: background
CNOOC was incorporated in 1982 under State Council regulations for cooperation with foreign enterprises, and was authorised to take overall responsibility for offshore oil and gas in China.
The term · ATEX and IECEx
What “ATEX and IECEx” means for a smartphone
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 CNOOC. A CNOOC reviewer assessing a handset for Bohai or South China Sea platforms, onshore terminals or the Huizhou complex would look for a certificate of conformity, schedule of conditions and marking. ATEX and IECEx evidence helps international partners and EPCs working with CNOOC on offshore and petrochemical projects. The IS-04Z1 is in certification and nothing has been issued.
The route · specification
Specifying an ATEX and IECEx mobile phone for CNOOC
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 · CNOOC
Frequently asked questions
Can CNOOC buy the IS-04Z1 today?
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.
What does an ATEX and IECEx mobile phone for CNOOC cost?
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.
Is the IS-04Z1 ATEX and IECEx certified?
Not yet. Both routes are in progress with TÜV in Germany and no certificate has been issued. Any listing that says otherwise is wrong.
How does CNOOC approve suppliers?
Supplier registration and equipment approval are run by the organisation itself; confirm current requirements with its procurement and HSE teams.
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.
Which certification do Chinese offshore and onshore sites expect for Ex phones?
China operates its own explosion-protection certification scheme, commonly marked Ex with a national certificate, in addition to international schemes. CNOOC and its contractors normally ask for the certificate accepted in China, so confirm the required marks and testing bodies before offering devices.
Are CNOOC offshore platforms different from its LNG terminals for equipment selection?
Yes. Offshore platforms combine confined spaces, salt air and vibration with gas and oil areas, while LNG terminals involve cryogenic liquids, large storage tanks and jetties. Ask the facility for area classification drawings, and check device ratings for each environment.
Is IECEx enough for equipment going onto CNOOC platforms?
Not by itself. CNOOC runs its own supplier registration and equipment approval, and national requirements may apply. IECEx documents help comparison but do not replace them. The IS-04Z1 has no certificate yet. Confirm current requirements with CNOOC's procurement and HSE teams before planning any evaluation.
Related guides
Keep exploring
Other guides for CNOOC, other places in China, and the pages behind them.
IECEx Mobile Phone Supplier for CNOOCSame place, different guide
Explosion-Proof Mobile Phone Supplier for CNOOCSame place, different guide
Intrinsically Safe Mobile Phone Supplier for CNOOCSame place, different guide
ATEX and IECEx Mobile Phone Supplier for CNOOCSame place, different guide
ATEX and IECEx Mobile Phone Supplier for SinopecElsewhere in China
ATEX and IECEx Mobile Phone Supplier for CNPCElsewhere in China
China market guideCertification route and regulators
All guides for ChinaEvery route we cover
Certification statusWhat is in progress
Enquiry · CNOOC
Ask about the IS-04Z1 for CNOOC, China
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Enquiry · CNOOC
Launching Q4 2026
Planning for CNOOC?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.