A Carbon Dioxide (CO2) reduction certificate shows that the certificate holder cut greenhouse gas emissions by a certain amount. A CO2 Reduction certificate will make effective actions against global warming globally, making them climate natural with emission rfeduction practices. The certificate can also demonstrate that the company’s buyer has compensatory means for each good, process, or carbon offset service. The purpose is to promote sustainable market operations, industrial and commercial processes in low emissions. In other words, the activities are less carbon-intensive by restricting/reducing emitting carbon dioxide into the atmosphere, leading to greenhouse gas (GHG) mitigation. We offer this type of certificate to The companies that need to bring their carbon footprint voluntarily. Following a systematic procedure with cooperation between the DEISO Sustainability Services Department (DEISO SUS) and the DEISO Research and Development Department (DEISO R&D), of analysis of the client’s business activities and evaluation, the CO2 reduction certificate is issued after in-depth environmental evaluation and comparison between the previous state and the current state of a company or an industry’s environmental performance regarding CO2 emissions.