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 · IECEx
IECEx Mobile Phone for CNOOC
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. 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 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 topicIECEx
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.
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.
At a glance · IECEx
Checklist: IECEx mobile phone for CNOOC
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Certificate of conformity | Number checkable on the IECEx online register | In progress; not issued |
| Standards edition | The IEC 60079 edition the certificate cites | Stated on the certificate when issued |
| Schedule of conditions | Limits of use, batteries and accessories | Published with the certificate |
| 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
China National Offshore Oil Corporation (CNOOC) and the IS-04Z1
Where it operates and the kinds of classified area a handset would meet there.
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: geography and layout
A project near the Weizhou Island terminal in the Beibu Gulf area, around 80 nautical miles from the Vietnamese border, shows how far offshore its facilities are from the mainland.
The term · IECEx
What “IECEx” means for a smartphone
IECEx is the international scheme for certifying equipment used in explosive atmospheres. A certificate of conformity is issued by an accredited certification body against a specific edition of the IEC 60079 standards and carries a schedule of conditions of safe use. It is not a legal requirement in most countries on its own, but many national schemes accept it as the technical basis.
The IECEx certificate for the IS-04Z1 is in progress and has not been issued. The marking target is Ex ib IIC T4, the intrinsic safety concept for Zone 1 gas with the hardest gas group (IIC) and a 135 °C temperature class.
In CNOOC. CNOOC works with international partners, including joint ventures at its petrochemical sites, and many of them use IECEx documents. A certificate of conformity with its schedule of conditions gives CNOOC reviewers and these partners a common reference. The IS-04Z1 is designed for IECEx, which is still in progress. Chinese requirements may apply separately.
The route · specification
Specifying an 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 IECEx mobile phone for CNOOC cost?
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.
Does the IS-04Z1 hold an IECEx certificate?
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
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
Related guides for CNOOC and for China.
ATEX and IECEx Mobile Phone Supplier for CNOOCSame place, different guide
Explosion-Proof Mobile Phone for CNOOCSame place, different guide
Intrinsically Safe Mobile Phone for CNOOCSame place, different guide
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
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Enquiry · CNOOC
Launching Q4 2026
Planning for CNOOC?
Name the site and the operator and we will send what is available before launch.