Acesian Partners Limited is a Singapore-based provider of environmental solutions and integrated services to various industries, including the semiconductor, healthcare, electric vehicle battery, wastewater treatment, chemical, pharmaceutical, and biotechnological industries. Its principal activities consist of the design, manufacture, and supply of critical airflow and related products, as well as investment holding. Its segments include Critical airflow design and supply, Engineering services, and Corporate. The Critical airflow design and supply segment is engaged in the design, manufacture, supply of critical airflow and related products including ETFE-coated ducts, uncoated stainless-steel ducts and critical airflow systems that integrate with third-party equipment such as fume-hoods, scrubbers, and fans for a complete environment-control system. The Engineering services segment is engaged in the provision of turnkey facility construction management and specialist engineering.