Merger
HD Hyundai Chemical absorbed Lotte Chemical's Daesan unit to form H&L Advanced, launched at the Daesan plant on 4 September 2026.
Daesan · IECEx
IECEx Mobile Phone Distributor in Daesan
Daesan is a petrochemical complex in Seosan, South Chungcheong Province, on the Yellow Sea coast. HD Hyundai Oilbank, which is headquartered in Seosan, and the merged H&L Advanced petrochemical business operate there, so process areas are Zone 1 and Zone 2. An IECEx mobile phone distributor in Daesan would carry the IS-04Z1 to these buyers once certification completes.
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
RouteDistribution
WhereDaesan
Short answer. Daesan has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · IECEx
Checklist: IECEx mobile phone for Daesan
| 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 | Daesan: Tank farms, Hydrogen handling, Naphtha cracker and petrochemical units | Classified by the site operator |
Product · Daesan
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 Daesan. 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 · Daesan
Daesan at a glance: who is there, what is classified
A short profile of the site and the kinds of classified area that matter for portable equipment.
Operators and companies on site
- H&L Advanced (HD Hyundai Oilbank and Lotte Chemical, 50% each)
- HD Hyundai Oilbank
Classified areas to expect
- Naphtha cracker and petrochemical units
- Refinery process units
- Tank farms
- Hydrogen handling
Local conditions · Daesan
Site conditions at Daesan: what wears and what limits equipment
Ownership
HD Hyundai Oilbank and Lotte Chemical each hold 50% and each contributed 600 billion won.
Field notes · Daesan
More about Daesan that matters for portable equipment
Daesan: industry on the ground
HD Hyundai Chemical is owned 60% by HD Hyundai Oilbank and 40% by Lotte Chemical, and in late 2025 the partners agreed to consolidate their Daesan naphtha crackers, subject to ministry approval.
Daesan: people and language
Seosan had a population of roughly 175,000 in the 2017 census, which sets the scale of the local labour pool beside the coastal industrial area.
Daesan: geography and layout
Daesan lies within Seosan city on the Yellow Sea coast of South Chungcheong Province, about 125 km south of Seoul and 34 km north-west of Naepo New Town.
Daesan: who works there
The Daesan refining and petrochemical platform is a 50/50 joint venture between Hanwha and TotalEnergies, commissioned in 1991 and covering about 3.3 million square metres, making fuels and polymers on one integrated site.
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 Daesan. Daesan's cracker and refinery work draws overseas licensors and specialist contractors alongside Korean firms. IECEx gives them a certificate of conformity and a schedule of conditions to read. The IS-04Z1 has neither yet, as certification is in progress, so only the target documents can be discussed.
The route · distribution
Distributing the IS-04Z1 in Daesan
SAMS is appointing authorised distributors ahead of the Q4 2026 launch. No territory has been granted for Daesan yet and applications are reviewed company by company. Because a certified Ex device cannot be opened by an ordinary phone workshop without invalidating its certificate, SAMS looks for partners who can provide competent technical support and after-sales service locally.
What SAMS looks for in a partner
- Operator relationships
- Existing supplier registrations or a clear route to them with the main operators and contractors in Daesan.
- Ex-competent staff
- People who understand zone classification, markings and the conditions of a certificate.
And equally important
- Local-language support
- Documentation, training and helpdesk in the languages the workforce uses.
- Service capability
- Spares, battery replacement and repair routed through SAMS-approved channels.
Questions · Daesan
Frequently asked questions
Can we buy an IECEx mobile phone in Daesan today?
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.
What does an IECEx mobile phone in Daesan 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.
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.
Which areas at Daesan would use it?
Likely candidates are naphtha cracker and petrochemical units, refinery process units, tank farms, hydrogen handling. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
How do I become a SAMS distributor for Daesan?
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Daesan.
Do I need local approvals before using phones in Daesan petrochemical plants?
Each plant sets its own rules for portable electronics and controls entry with permits and inductions. Typically only devices with the certification the operator specifies are allowed in classified areas, so confirm the requirement with the plant's safety department first.
Is Daesan suitable for stocking spares and chargers for a long project?
A transport hub location helps, since expressways link it to Seoul and Daejeon, so replacements can usually arrive within a day or two. Confirm lead times with your supplier and keep spare batteries and chargers on site for continuous operations.
Who is the buyer now that Daesan operators have merged?
Daesan now has H&L Advanced, a merged petrochemical business owned half each by HD Hyundai Oilbank and Lotte Chemical, alongside the refinery operator HD Hyundai Oilbank. Procurement routes may still be changing. Confirm requirements with the site operator before sending documents.
Related guides
Keep exploring
Related guides for Daesan and for South Korea.
Ex-Proof Mobile Phone Distributor in DaesanSame place, different guide
Explosion-Proof Mobile Phone in DaesanSame place, different guide
ATEX and IECEx Mobile Phone Distributor in DaesanSame place, different guide
Intrinsically Safe Mobile Phone Distributor in DaesanSame place, different guide
Industrial Mobile Phone in DaesanSame place, different guide
Hazardous Area Mobile Phone in DaesanSame place, different guide
ATEX and IECEx Mobile Phone Distributor in YeosuElsewhere in South Korea
ATEX and IECEx Mobile Phone Distributor in PohangElsewhere in South Korea
ATEX and IECEx Mobile Phone Distributor in UlsanElsewhere in South Korea
ATEX and IECEx Mobile Phone Distributor in BusanElsewhere in South Korea
South Korea market guideCertification route and regulators
All guides for South KoreaEvery route we cover
Certification statusWhat is in progress
Enquiry · Daesan
Ask about the IS-04Z1 for Daesan, South Korea
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Daesan
Launching Q4 2026
Planning for Daesan?
Name the site and the operator and we will send what is available before launch.