To date there is no full-chain CCUS project involving offshore storage in China. This report gives a general review on major engi- neering requirements and their relevance and justification for offshore CO2 transportation and storage based on international experiences. The capital costs are mentioned briefly. The geological and system integration issues are expected to be covered in other reports.To date there is no full-chain CCUS project involving offshore storage in China. This report gives a general review on major engi- neering requirements and their relevance and justification for offshore CO2 transportation and storage based on international experiences. The capital costs are mentioned briefly. The geological and system integration issues are expected to be covered in other reports