Semnan Sari gypsum mine is one of the top‐quality mines in the region with the purity of more than 97% and whiteness of
more than 90%. The mine has the capacity of mining about 500,000 tons of gypsum per year. For now, about 1,500 thousand
tons of raw gypsum are mined daily by advanced machinery and equipment and transported to the factory depot for supply of
gypsum and prudcing various types of quality gypsum powders. It is noteworthy that the ownership of the mine and all tools
and machinery belongs to the Semnan Sari Co

 

Production stages of various types of constructional powder plaster are divided into ten stages in general, and different special
machines are used to perform each of these stages. These ten steps are: blasting gypsum, carrying, crushing, sieving, baking,
dusting, milling, storing, packing and finally loading. First, gypsum is transported from the mine to the factory depot, and after
the production process, the product is packed in bags of different weights and transported to the target market by trucks. It
should be noted that different types of gypsum with different quality and characteristics are offered in distinct packages and
prices.

 

 

 The quality control unit of Semnan Sari gypsum factory takes samples of processing gypsum every hour and at every stage of
production for examination and performing special tests using the most updated equipment and specialized tools. Quality
control is performed according to the criteria notified by the Institute of Standards and Industrial Research of Iran (ISIRI) from
the first to the final production stages. It should be mentioned that Semnan Sari laboratory team is able to perform various
tests according to the customer's needs.

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Semnan Sari gypsum products have been available in the market for more than 40 years under the brands "Semnan Sari" and
"Ahovan". Since its inception, the company has strived to significantly increase the variety and quality of its products according
to the customer needs. Currently, more than 7 types of products are offered to domestic and foreign markets. High quality
products, competitive prices, appropriate sales policies and the use of high purity gypsum resources have greatly increased the
company's market share. Ahovan gypsum powder products are now exported to many countries such as China, Iraq, Pakistan
and so on

 

 

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