According to Shiraz Petrochemical Company, this complex obtained the highest certificate for reducing carbon emissions known as CER by eliminating about 800,000 tons of greenhouse gas equivalent to carbon dioxide in the history of the country.

Thus, Shiraz Petrochemical is one of the largest plant obtaining CER in the United Nations with the CDM project in its Nitric Acid Unit.

The most recently received certificates belong to the years 2017 and 2018, and soon with the completion of the evaluation and verification stages in 2019, one million new carbon certificates will be issued.

The achievement is one of the results of the company's large environmental project in the period of 2011 to 2016, which was implemented at a cost of 7 million dollars in the form of designing and building a CDM unit to remove nitrogen oxide greenhouse gases and nitrogen dioxide pollutants in the nitric acid unit.

Shiraz Petrochemical is the executor of the only CDM project of Iran's petrochemical industry that has succeeded in receiving high volume carbon certification and has the highest carbon certification record among the four Iranian CDM projects that have obtained carbon certification.

Iran is among the top 10 greenhouse gas emitters in the United Nations and has commitments to reduce greenhouse gases, some of which Shiraz Petrochemical Plant has already met.

Carbon dioxide is commonly known as the most well-known greenhouse gas, but carbon dioxide is just one of the greenhouse gases that humans produce.