Engineering Excellence in Sulfonation Since 1999
A trusted global leader in SO₃ sulfonation technology, delivering turnkey plant solutions, cutting-edge R&D, and unparalleled technical support to the surfactant and chemical industries.
A trusted global leader in SO₃ sulfonation technology, delivering turnkey plant solutions, cutting-edge R&D, and unparalleled technical support to the surfactant and chemical industries.
50+
Plants Delivered Worldwide
Founded in 1999, Beijing Xinrui Baili Sulfonation Technology Co., Ltd. (SO₃) is China's leading specialist in sulfonation plant engineering, technology development, and technical consultation.
We design, manufacture, and commission complete SO₃ sulfonation production lines — from raw material handling through to final product packaging — serving the detergent, personal care, petroleum, and industrial chemical sectors across more than 30 countries.
Our mission is to deliver world-class sulfonation solutions that combine proven technology with innovative engineering, ensuring every plant we build operates at peak efficiency, safety, and product quality.
Years in Business
Countries Served
Engineers & Staff
From a small engineering consultancy to a global sulfonation technology provider, our journey reflects relentless commitment to innovation and quality.
Founded as a specialized sulfonation engineering firm with a team of 12 chemical engineers, focusing on domestic SO₃ technology development.
Completed our first turnkey sulfonation plant export to Saudi Arabia, marking our entry into global markets and establishing key partnerships.
Developed our patented multi-tube falling film SO₃ reactor, achieving 98%+ active matter content and significantly reducing energy consumption.
Reached the milestone of 50 plants delivered worldwide, expanding into Africa, Southeast Asia, and South America with capacities up to 8,000 kg/h.
Launched our MES (Methyl Ester Sulfonate) production technology for bio-based surfactants, responding to global demand for sustainable chemistry.
Operating in 30+ countries with 200+ professionals, we continue to set industry benchmarks in SO₃ sulfonation technology and plant performance.
Our competitive advantages are built on decades of focused expertise, proprietary technology, and an unwavering commitment to client success.
A seasoned team with deep experience in research, design, manufacturing, and installation of sulfonation production facilities.
Produce LABSA with >97.5% active matter and ultra-low dioxane SLES (as low as 8 ppm) with our proprietary technology.
Sulfonation units from 40 to 8,000 kg/hr capacity, plus 3–10 kg/hr pilot and experimental falling film reactors.
Successfully delivered large-scale sulfonation plants in Qatar, India, and across Asia with full commissioning support.
Our vertically integrated facility in Beijing handles every stage of plant production — from design engineering and precision fabrication to assembly, testing, and global logistics.
Our engineering processes, manufacturing facilities, and delivered plants meet the highest international quality and safety standards.
Key equipment for achieving efficient and stable sulfonation processes, supporting the industrial production of a full range of surfactant products.
European Conformity certification for all pressure equipment and machinery, compliant with PED 2014/68/EU directives.
Pressure vessel design and fabrication comply with ASME Boiler and Pressure Vessel Code (BPVC) Section VIII requirements.
Proprietary technology protected by over 15 national patents covering reactor design, process control, and safety systems.
We supply plants all over the world, from Saudi Arabia to Kuwait, from Ukraine to Greece, from Egypt to Nigeria.
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