Metropolitan location
Proximity to Seoul and Incheon International Airport makes logistics straightforward.
Incheon is part of the Seoul Metropolitan Area, the world's fourth-largest by population, and its port and proximity to Seoul have driven its growth as a coastal industrial city. KOGAS runs an LNG terminal there, where tank and send-out areas create Zone 1 and Zone 2 conditions. If you are specifying an IECEx smartphone for Incheon, 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 Incheon: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| 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 | Incheon: LNG storage tanks, LNG jetty and loading, Gas send-out | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Incheon. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The companies on site and the hazardous-area types a handset is likely to meet there.
Proximity to Seoul and Incheon International Airport makes logistics straightforward.
Incheon ranks second after Busan and has industrial complexes at Bupyeong, Juan and Namdong.
Incheon forms the heart of the Capital Industrial Region, with major industrial parks including the Bupyeong and Juan industrial complexes, so many manufacturing plants lie close to Seoul.
Bio-industry is an emerging growth sector in Incheon, with biopharmaceutical production capacity described as among the largest in the world, which adds laboratory and solvent areas to the city's industrial mix.
A programme launched in 2007 aims to make Incheon as proficient in English as Singapore, which suggests English is more widely usable in the Free Economic Zone than in most Korean industrial cities.
In 2003 Incheon became South Korea's first free economic zone, and large local and global companies have since invested in the Incheon Free Economic Zone, including bio-industry projects at Songdo.
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 Incheon. Incheon is a major gateway port, so LNG carrier crews, inspectors and international contractors visit regularly. IECEx suits them because a certificate of conformity and schedule of conditions read the same everywhere. The IS-04Z1 has neither yet, as certification is in progress.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
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.
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
Likely candidates are lng storage tanks, lng jetty and loading, gas send-out, industrial complex chemical handling. 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.
The industrial parks, port tank storage and fuel handling at the airport and harbour can all involve flammable gases and liquids, while bio-industry plants add chemical solvents. Each operator defines zones and permits, so ask for classification drawings for your site.
The climate is mild by Korean standards, with distinct seasons, cold winter winds from the north-west and humid summers. Typical considerations are battery performance in cold weather and humidity and salt air near the port, so check device ratings against site conditions.
No. Incheon also has industrial complexes at Bupyeong, Juan and Namdong with chemical handling, and other industry such as a refinery has not been verified here. Each operator classifies its own areas. Confirm with the site operator.
Related guides for Incheon and for 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.
Name the site and the operator and we will send what is available before launch.