Climate
Busan has a humid subtropical climate and is among the most typhoon-prone Korean cities.
The densest areas lie in narrow valleys between the Nakdong and Suyeong rivers, with mountains separating most districts, so industrial and port zones are spread along the coast rather than in one block. Shipbuilding and ship repair are key local industries, so Zone 1 conditions arise in yards, fuel and chemical storage and cargo handling. Distribution partners for Busan are being identified ahead of the Q4 2026 launch of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Busan 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. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| Where it applies | Busan: Fuel and chemical storage, Port cargo handling, Vessel tank spaces | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Busan. 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.
Busan has a humid subtropical climate and is among the most typhoon-prone Korean cities.
Busan handled 24.4 million TEU in 2024 and is managed by the Busan Port Authority.
Busan has about 3.3 million residents, and its surrounding Southeastern Maritime Industrial Region, including Ulsan and South Gyeongsang, has around 8 million, making it a large industrial labour and supplier base.
Busan has a mild humid subtropical climate influenced by the East Asian monsoon, with cool dry winters, rare temperature extremes and snow on only about four days a year.
The city's economy is about 76 percent services and 17 percent manufacturing, as the older manufacturing base has declined with the shift towards high-tech industry around Seoul.
Busan has South Korea's busiest port and the sixth busiest in the world, which handled 21.81 million container units in 2020, so equipment shipments can usually be arranged through frequent services.
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In Busan. The classified areas here are vessel tank spaces, ship repair yards, fuel and chemical storage and port cargo handling. Yards and terminals classify their own areas, not SAMS, and only one yard operator was verified for Busan. A specifier should ask each facility for its classification documents.
A distributor for Busan would carry the IS-04Z1 after certification completes; the Q4 2026 launch is the planning date and no appointment has been made. SAMS reviews applicants one by one and prefers companies with their own Ex-competent technical and service staff, since certified devices must not be repaired outside approved channels.
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
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.
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
Likely candidates are vessel tank spaces, ship repair yards, fuel and chemical storage, port cargo handling. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
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 Busan.
Korean is the working language at most sites, though the port area is used to foreign crews and visitors. Plan interpreters or Korean-language safety materials for local staff, and check that device interfaces and instructions can be provided in Korean.
Port tank terminals, ship repair and shipbuilding yards, and industrial plants in the wider south-east region can all have gas or vapour areas. Each operator sets its own zones and permits, so ask for classification drawings and portable-device policy.
Busan Port Authority manages the port and the Korea Occupational Safety and Health Agency (KOSHA) covers workplace safety. SAMS does not hold any approval from either. Ask the yard or terminal which rules it applies, and confirm with the site operator.
More on Busan, and on other places in South Korea.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.