Shandong Dibao Soil Remediation Technology Co. Ltd.

——Commitment to Soil Remediation and Improvement

Shandong Dibao Soil Remediation Technology Co. Ltd. is the first soil conditioner company registered in China. The company mainly uses oyster shell as main raw material and introduces technologies from Korea and Japan to produce soil conditioners.

Unique Resources of Oyster Shell

The company is located in Rongcheng, Weihai city. As oyster is local important marine economic species, Rongcheng, Weihai city is the main export area for oyster shell nationwide. With cultivated area of nearly 50,000 mu and 200,000 tons of annual output, it is very convenient to collect oyster shell raw materials.

The oyster shells used by the company to produce oyster shell soil conditioner are ostreidae, Crassostrea plicatula, pacific oyster and Ostrea talienwhanensis Crosse. Oyster shell is big and thick and oyster shell powder contains more than 90% of calcium carbonate, calcium phosphate and calcium sulfate as well as more than 20 trace elements such as magnesium, sodium, strontium, iron, aluminum, silicon, titanium, manganese, barium, copper, zinc, potassium, phosphorus, chromium and nickel, and protein. Hydrolyzate contains 17 amino acids such as aspartic acid; glycine, glutamic acid, cystine and ethionine and total amino acid content is 0.15-0.24%.

Oyster Shell • Inorganic Nutrients Table (mg/kg)

Oyster Shell • Amino Acid Content (*10-2ug/g)