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ABOUT US
Hong Kong Rongjian Chemical Co., Ltd. is an international strategic window established by Shanghai Rongjian Chemical Plant Co., Ltd. for the global market, with its headquarters in Hong Kong. Relying on its parent company, Shanghai Rongjian Chemical Plant, China's only leading company that uses high-temperature technology to produce high-purity cuprous chloride, we are committed to providing global customers with top-notch fine chemical products and efficient trade solutions.
The parent company is rooted in Shanghai Chemical Industry Park. With its independently innovative high-temperature technology, it has increased the purity of cuprous chloride to more than 99%, and the content of heavy metal impurities is strictly controlled within 50ppm, with quality far exceeding industry standards. At present, our products have served global top companies such as BASF, Wacker, Bluestar, and DOW, covering core areas such as silicone, pharmaceuticals, pesticides, and high-end inks.
Hong Kong Rongjian takes "technology-driven trade" as its concept, integrates the cutting-edge production capacity of the Shanghai parent company and the international trade hub advantage of Hong Kong, and provides global customers with stable, compliant, and agile chemical supply chain services.
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Customers worldwide
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Product Category
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Customer Review
9000
Tons
Annual Output
Cuprous chloride application industry
Biopharmaceuticals
Chemical Pigments
pesticide
Silicone
Petrochemical
Chemical reagents
Solar
Why choose Hong Kong Rongjian Chemical?
Technical barriers: High-temperature process, which is rare in the world
Rongjian Chemical is one of the few companies in the world that has mastered high-temperature mass production technology. The purity of its products (99-99.5%) and environmental friendliness far exceed those of dry and wet processes, eliminating pollution from inferior raw materials and complying with international standards such as EU REACH.
Quality discourse power: defining industry benchmarks
Total amount of heavy metals <50ppm (pharmaceutical grade <10ppm), acid insoluble matter close to zero
Customer proof: long-term bulk purchase by the world's top 5 silicone giants, supply chain certification by top 500 companies
Hong Kong's unique advantages as a trading hub
Zero tariff circulation: Efficiently connect global markets and reduce cross-border trade costs
Freedom of foreign exchange
settlement: Flexible support for multi-currency transactions to ensure capital efficiency
International compliance guarantee: strictly follow international trade regulations and provide complete customs clearance and quality inspection documents
Sustainable cooperation commitment
Capacity guarantee: Direct supply from Shanghai factory, no OEM, quality control at the source
Agile response: Hong Kong team connects with Europe, America and Asia time zones 24 hours a day, providing customized logistics and technical services
Green production: High temperature process has no wastewater pollution, in line with the global low-carbon supply chain trend
Quality Control System
Laser particle size analyzer:
The company uses an airflow laser particle size analyzer to control the particle size of each batch of products to ensure the particle size distribution range.
Atomic absorption spectrophotometer;
Use atomic absorption to test the heavy metal content of raw electrolytic copper and products to ensure that the heavy metal content of raw materials and products is within the range. Focus on testing heavy metals that can cause catalytic reaction poisoning.
Catalyst system requirements








FAQ
Q:What's the minimum order quantity?
A:The minimum order weight for each color is ≥ 100kg
Q:What specifications are available?
A:
• Ordinary grade: Main content>=98.5, heavy metal content<=200ppm, no particle size requirement. Usually used in pigment and petroleum industries.
• Catalyst grade: Main content>=99%, heavy metal content<=50ppm, product particle size can be controlled as required. Usually used in pharmaceutical, catalyst and other industries.
Q:What is the price?
The price depends on the copper price and specifications. Please let us know the specifications or use industry.
Q:What is the estimated delivery time?
A:After receiving your advance payment, it will take about 5-8 days for production, the specific time depends on the order quantity.
Q:Can we get samples?
A:Free powder samples are available for your testing. Samples below 1kg are free, but we will be very grateful if you can afford the courier cost.
Strength and Service
Brand Strength
Brand culture embodies the values, beliefs, and mission of a brand.
Brand Strength
Automated production line, stable production capacity, excellent quality, rich product series, meeting market demand; The product advantages of the functional powder coating series include the vast majority of functional powders in the industry, as well as patented products with high thermal conductivity.
Product Strength
Having strong technological innovation capabilities, improving the technical content and added value of products.
Product Strength
Our company always adheres to the development concept of "science, professionalism, harmony, win-win, and sustainability", firmly adheres to the quality policy of "pursuing excellent quality, customer needs first", promotes brand strategy, enhances brand connotation, and creates economies of scale.
Strict Inspection
Ensure the stability and timeliness of material supply on the production line.
Strict Inspection
Strictly follow the formula process for feeding, control the stirring speed and time, and conduct tests on adhesion, recoating, physical and chemical properties before full inspection and shipment.
Upgrade Service
Resolve the problems encountered by customers during the use of the product to ensure their satisfaction.
Upgrade Service
Technicians provide guidance on front-end and back-end process technology and related auxiliary solutions to help enterprises solve problems in the use of coatings.
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