Port and industry
Incheon ranks second after Busan and has industrial complexes at Bupyeong, Juan and Namdong.
Incheon is South Korea's second largest port, west of Seoul, and forms the heart of the Capital Industrial Region with the Bupyeong, Juan and Namdong industrial complexes. KOGAS runs an LNG terminal there, where tank and send-out areas create Zone 1 and Zone 2 conditions. This page explains what to look for in an intrinsically safe mobile phone for Incheon, and where the IS-04Z1 stands against that list today.
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.
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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
| 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 | 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.
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Incheon ranks second after Busan and has industrial complexes at Bupyeong, Juan and Namdong.
KOGAS operates the Incheon terminal, one of its regasification terminals, which began operating in 1996.
Incheon International Airport opened in 2001 on reclaimed land between Yeongjong and Yongyu islands, about 48 km west of Seoul, and replaced Gimpo as the capital's main international airport.
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.
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.
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 Incheon. Terminal operators walk storage tanks, the jetty and send-out systems, recording readings and checks as they go. A handheld intrinsically safe phone is intended for that routine, subject to certification in progress and to KOGAS rules. It could also serve inspectors working in industrial-complex chemical areas.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
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.
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.
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.
More on Incheon, and on other places in 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.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.