Contact Us
How can we assist your business?
As a direct source manufacturer of inorganic sulphate series with 200,000 MT annual capacity, we welcome inquiries for bulk supply, technical consultation, and custom packaging.
Headquarters & Production Base
550 meters east from the intersection of Kaiyuan Rd and Changfeng Rd, Changshan, Zouping, Shandong, China
Manufacturing Facilities
3 Modern Bases: Zouping · Binzhou · Tai'an, Shandong, China
Request a Direct Factory Quote
Fill in your requirements below. Our export sales team will reply with official COA and pricing within 12 hours.
Where we work
Got Questions? We Have Answers
Find quick answers to common questions about our factory capacity, sulphate product specifications, customization capabilities, and shipping terms.
What is your Minimum Order Quantity (MOQ)?
Our standard Minimum Order Quantity (MOQ) is 27 Metric Tons (27 MT), which corresponds to one full 20-foot container (FCL). This ensures optimal freight efficiency and safe ocean transportation.
Can you provide free samples for quality evaluation?
Yes, free samples of our magnesium sulphate, ferrous sulphate, and zinc sulphate are available upon request for lab testing and quality inspection. Customers only need to cover the international courier freight cost.
What is your manufacturing capacity and factory scale?
Shandong Pingsen Biotechnology operates 3 modern production bases located in Zouping, Binzhou, and Tai'an, Shandong. With 5 automated production lines, our annual capacity reaches 200,000 MT with a reliable daily supply power of 100 MT/day.
What specifications and packaging options can be customized?
We support extensive customization: ① Particle sizes: 0.1–1mm, 1–3mm, 2–4mm granules, and various mesh powders; ② Packaging: 25kg, 50kg, 1000kg, and 1250kg jumbo bags with customized customer LOGO and shipping marks; ③ Grades: Agricultural, Feed, and Industrial grade adjustments.
How do you guarantee product quality and consistency?
Our products strictly comply with domestic industrial superior-grade standards. Every outgoing batch undergoes comprehensive internal laboratory testing with an official COA (Certificate of Analysis) issued. Furthermore, we fully welcome and support third-party SGS inspections before shipment.
Do you provide production line equipment and engineering solutions?
Yes. Beyond raw material supply, we undertake customized supporting-equipment projects for inorganic salt production lines. For clients planning plant construction, we deliver complete turnkey solutions covering chemical process consultation, plant layout, and equipment matching (reaction kettles, fluidized bed dryers, and granulators).