Environmental Impact Management

Management System

To stay close to the broader and macro environmental trends, CTCI has taken into account multi-faceted environmental aspects within its business objectives by introducing the ISO 14001:2015 Environmental Management System. To facilitate its effectiveness and help us identify risks comprehensively, we took an integrated approach by combining it with the ISO 45001:2018 Occupational Health and Safety Management System into one HSE management system. This HSE system covers various dimensions, including design, procurement, construction, commissioning, as well as any controllable and affected activities, products, and service at the construction sites, that is, covering100% of our revenue scope. Moreover, the system has been validated by a third-party validation company. To ensure the effectiveness of our environment management system, not only do we carry out regular and non-regular internal auditing, we also invite third-party validator to conduct external audits on CTCI headquarters and randomly-selected construction sites. Over the past five years, CTCI has no record of heavy fines for major environmental pollution, and we believe this achievement validates our efforts in this regard.

▼ Preventive Measures against Air Pollution at Construction Sites

▼ Soil and Groundwater Protection at Construction Sites
Item Measures Purpose and Outcome
Sewage Plans
  • The design of sewage emission piping was taken into consideration at the planning stage of all the construction sites
  • Construction site wastewater and sewage are treated with the waste sewage treatment equipment that has been set up by the owner in accordance with relevant regulations
These measures can reduce dust at the construction sites and prevent air pollution, and can also be used in concrete cooling and maintenance
Sewage channels Constructed using impermeable materials to prevent wastewater from entering the soil and cause secondary pollution The channels reduce pollution caused by wastewater entering the ground. Additionally, they are also used for collecting and sorting wastewater and rainwater on construction sites
Domestic wastewater
  • Septic tanks are installed
  • Discharged into the sewage systems of nearby business or municipality
  • Entrusted to qualified and legal treatment contractors for collection, transportation, and treatment
These measures reduce the pollution caused by wastewater entering the soil directly. Toilet sewage is collected in septic tanks and removed regularly by legal contractors to avoid overflowing of septic. As to other domestic light sewage, they are discharged into the sewage system
Wastewater from construction
  • Settling basins are installed
  • After the settling process, the supernatant is extracted for sprinkling on the construction site
  • If the wastewater does not contain harmful ingredients and is not unclean, it is collected and reused
  • If it contains harmful ingredients or is unclean, it is either treated at the construction sites, or it will be emitted after treatment by contractors to meet the standard of discharged water
Prevent the wastewater from construction from directly entering the soil. The wastewater is collected and sorted with treatment equipment, and the reusable water is reused
Wastewater generated from commissioning process Wastewater is collected according to water quantity and quality for discharge or reuse. These measures prevent wastewater from directly entering the sewage system. The wastewater is sorted based on water quality for reuse or emitted via pipelines that are legally compliant
Machinery maintenance
  • For regular machinery maintenance, oil changes are not allowed on construction sites, so that oil dripping and pollution during the oil change process can be prevented
  • Before machinery and construction vehicles leave construction sites, they are required to be cleaned and ensure no mud remains by using sprinkling equipment or washing pools. The wastewater from car washing is also required to be handled appropriately
Machinery is maintained and repaired regularly to prevent exhaust that does not comply with regulations. Oil seals are changed periodically to avoid the leakage of heavy oil
▼ Amount of Waste Production

▼ Resource Recycling Results

Prevention & Control of Noise

In consideration of the health and safety of the operators and the construction quality, CTCI prioritizes the use of low-noise machinery, equipment, vehicles, and appliances. If it is expected that the noise pollution caused by the engineering construction may cause public protests, special attention will be paid to pollution prevention and public protest prevention and handling. Complaints are not limited to personal visits or in written forms; we consider all opinions and grievances regarding pollution and related matters voiced in any form, at any opportunity, on any occasion. All complaints are handled in the most efficient manner possible. A response regarding the official treatment plan and outcomes will be given to the person(s) filing the complaints. All reported incidents must be listed in detail, to be handled, tracked, and inspected, and to be sent regularly to the project managers for review. High-noise operations are performed away from the construction sites whenever possible or to be performed by contractors. When circumstances demand the use of equipment classified as "noise-prone" by the government, we would always apply for permits before carrying out installation and operation work. Pile driving is conducted using noiseless methods when there are concerns about noise pollution, or is to be done at appropriate hours of the day. Nighttime construction would be avoided whenever possible. Drivers of vehicles outside construction sites need to follow instructions and are audited regarding the potential generation of noise by said vehicles. They are required to drive on designated routes, in the designated time, with designated speed limits, and with noise-reduction equipment installed.


When selecting transportation contractors, CTCI prefers the ones who share our vision. We prefer those who have ISO 14001 Environmental Management Certification. To reduce the environmental impact from transportation, we use local equipment and materials whenever possible and procure locally to reduce transportation distance and conserve energy. We prioritize low-carbon and low-pollution forms of transportation. For example, energy-saving sea transportation is preferred over air transportation. In terms of sea transportation, since newly built ships have better fuel efficiency and can conserve oil, we use only those ships that are aged less than 15 years. During LCL or consolidation, cargoes with close delivery locations or shipment periods can be combined into a single batch for transportation if the project schedule allows.