Dense cluster
The industry occupies a compact area near the St. Clair River, so contractors move between neighbouring sites.
Sarnia, Ontario, is home to Chemical Valley, a cluster of refineries and petrochemical plants that Wikipedia puts at around 60 facilities. Imperial Oil, Suncor and Shell run refineries, alongside chemical producers, so process and storage areas are classified. Distribution partners for Sarnia (Chemical Valley) are being identified ahead of the Q4 2026 launch of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Sarnia (Chemical Valley) 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.
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 |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| Where it applies | Sarnia (Chemical Valley): Product storage and loading, Pipeline terminals, Refinery process units | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Sarnia Refinery. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
A short profile of the site and the kinds of classified area that matter for portable equipment.
The industry occupies a compact area near the St. Clair River, so contractors move between neighbouring sites.
Large pipelines bring Alberta crude oil to Sarnia, where refining and petrochemical production are mainstays of the local economy.
Lake Huron moderates Sarnia's humid continental climate, reducing temperature extremes, though lake-effect snow occurs when Arctic air crosses the lake in winter.
Sarnia Harbour handles lake freighters under the Blue Water Bridge, and its grain elevator, built in 1927 after dredging, is among the larger operating in Canada.
Chemical Valley and the surrounding area contain 62 chemical facilities and refineries, a dense concentration of hazardous process plant in one small city on the St. Clair River.
The village of Blue Water was built to house Polymer Corporation workers and nearly 3,000 people lived there until 1961, when residents were relocated to make way for chemical industry expansion.
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Sarnia (Chemical Valley). A marking check in a cluster of refineries and chemical plants would compare gas group and temperature class with each owner's data, since petrochemical gases can differ from fuels. The IS-04Z1 targets II 2 G Ex ib IIC T4, subject to certification. Each operator would decide suitability for its own units.
A distributor for Sarnia (Chemical Valley) 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 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 marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
Likely candidates are refinery process units, petrochemical plants, product storage and loading, pipeline terminals. 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 Sarnia (Chemical Valley).
It is the cluster of refineries and chemical plants south of downtown Sarnia. Typical hazards include flammable liquids, gases and some toxic substances, so classified areas and gas detection are common. Confirm each plant's zone drawings before bringing devices.
Usually only in permitted non-classified areas or with certified devices in classified ones, and plants set their own rules at induction. Confirm requirements with the specific operator.
Wikipedia puts the cluster at around 60 facilities, including refineries and petrochemical plants near the St. Clair River. Large pipelines bring Alberta crude oil to Sarnia. The mix of owners means area classification and procurement differ between sites, so ask each operator for its own data.
Related guides for Sarnia Refinery and for Canada.
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.