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Water treatment chemicals in Saudi Arabia are the antiscalants, coagulants, inhibitors, biocides and disinfectants used in desalination plants, reverse osmosis units, cooling systems, boilers and wastewater works. This page explains each product group, the chemistry issues Saudi feed water creates, how MEWA permits and Saudi Water Authority licensing apply as of 2026, and what to compare when choosing a supplier in Riyadh, Jeddah or the Eastern Province.
Jubail is where Saudi chemicals are made, so chemicals, lubricants and industrial gases play two roles here: output of the plants and input to them. A 2018 trade report on Jubail 2 described a primary chemicals zone for products such as methanol, ethylene oxide and ammonia, and Saudipedia lists gas and feedstock networks among the city's utilities. Producers buy catalysts, corrosion inhibitors and process chemicals, while the many plants around them need lubricants, solvents and coatings for upkeep.
In 2020 a gas company joint venture broke ground on an integrated hub in Jubail with a steam methane reformer for hydrogen, an air separation unit for oxygen and nitrogen, and pipeline networks, aimed at refineries and petrochemical plants in the Eastern Region and expected to be fully built in 2023. That shows the model: large users take industrial gases by pipeline, while smaller workshops rely on gas cylinders and regulators, nitrogen and oxygen for cutting, purging and welding. Maintenance crews also buy industrial protective coatings and anti-corrosion coatings, since salt air attacks steel quickly, and industrial lubricants for compressors, gearboxes and turbines.
Hazardous chemicals travel with safety data sheets, and storage must satisfy the General Directorate of Civil Defense. Inside the industrial city, the Royal Commission also sets environmental conditions for operators, so ask your supplier which permits cover storage and transport. Dangerous goods arrive through King Fahd Industrial Port or Jubail Commercial Port, where Mawani announced a SAR 500 million plus land lease in December 2025 for chemical storage of 70,000 cubic metres.
Request the technical data sheet and a recent certificate of analysis with every quotation, and check that cylinders carry valid test dates. Pipeline gas customers should agree purity, pressure and supply-interruption terms in the contract. For coatings, ask for a system specification that names surface preparation, film thickness and cure time. Use post a requirement to compare grades side by side.
Jubail is a planned industrial city before it is a town. The Royal Commission for Jubail and Yanbu, created in 1975, develops and runs Jubail Industrial City on the Arabian Gulf coast of the Eastern Province. Saudipedia names SABIC as the main owner of the industrial complexes and says 13 of its 16 Saudi production plants stand here, alongside Saudi Aramco Total Refining and Petrochemical Company (SATORP), Advanced Petrochemical Company and Jubail United Petrochemical Company. The older estate is often called Jubail 1. Jubail 2, whose foundation stone was laid in 2004, was planned in stages, with about a quarter of its area reserved for industry and a primary zone for chemicals such as methanol, ethylene oxide and ammonia, according to a 2018 trade report.
The Commission reported that investment across its industrial cities passed SAR 1.5 trillion (about USD 400 billion) by the end of 2025, and Saudipedia says it has set aside SAR 67.5 billion to double the city's area by 2030. Smaller fabricators, workshops and service firms cluster around the main plants, because the big complexes buy maintenance and contract labour continuously.
The Port of Jubail is two harbours under Mawani, the Saudi Ports Authority. King Fahd Industrial Port, opened to serve the industrial city, handles bulk and plant cargo, and Jubail Commercial Port handles general, container and bulk cargo. Saudi Global Ports, a PIF and PSA International venture, holds a build-operate-transfer contract for multipurpose terminals at four Eastern Province ports including both Jubail harbours. In December 2025 Mawani announced a land lease of more than SAR 500 million to a chemical terminal operator for 70,000 cubic metres of chemical storage at Jubail Commercial Port. Dammam is about 100 km south by road, and trucks and rail carry cargo on to Riyadh.
Inside the industrial city, the Royal Commission allocates land, supplies infrastructure and approves investors. Power, water and seawater cooling come from Marafiq, the utility for Jubail and Yanbu. Fire and life safety approvals come from the General Directorate of Civil Defense, medical products need the Saudi Food and Drug Authority, and customs entries are handled by ZATCA. Confirm the current steps with each body before signing.
Petrochemicals, refining and chemicals buy pumps, valves, instruments, coatings, gases and maintenance services on shutdown calendars. Utilities and the port buy electrical and marine equipment. Construction and housing demand follows the expansion programme.
