Water Resource Management

Water Resource Management

Water is a very important resource to the business operation of TPI Polene Power as it is one of the main raw materials used in the production process. The Company realizes and places importance to the use of water resources from natural and surface water sources, including wastewater from the production process for maximum efficiency in order not to affect the overall water management of the Pasak River Basin Irrigation Project and those who consume water from the Pasak River

Operational goals

Key operations

TPI Polene Group has shown a clear intention to manage internal water to achieve the most cost-effective use of water within the community. The Company's water source will be procured by Plc. TPI Polene from two main sources of raw water, namely the Pasak River and water from surface water reservoirs, including wastewater within the plants. The details are as follows:

1. Water from the Pa Sak River will be pumped up to the cement plant's water treatment plant, where a water supply system to be sent for use in production processes both cement plants and power plants.
2. Water from surface water reservoirs and wastewater within the plants consists of:
3.         A reservoir of 180,000 cubic meters for rainwater that falls on the plant area.
4. A reservoir of 1,5000,000 cubic meters for rainwater that falls in the mine area and nearby areas.
5. A reservoir of 1,000,000 cubic meters by TPI Polene Public Company Limited to be a reserve water source for the Company as well as to prevent impacts on the water consumption of people in nearby areas. Water from the surface water reservoirs will be pumped together with water from the Pa Sak River to improve its quality before being sent to cement plants and power plants and is also a reserve water storage reservoir for use in the dry season in cases where the amount of water from the Pa Sak River is insufficient for industrial consumption.

                In addition, TPI Polene Group also uses groundwater for producing drinking water for sale and drinking within the plants. The approach that TPI Polene Group has followed is to reduce the use of water resources from natural rivers by building surface water reservoirs for use in cement plants and power plants to prevent impacts on the water consumption of people in nearby areas. Therefore, the Company undertakes the following actions:

• Water pumping from the Pa Sak River is controlled by the Saraburi Provincial Irrigation Project Office. The Office will issue a license for the Company to pump water not exceeding 1,000,000 cubic meters per month. The Company is required to prepare a monthly report summarizing the amount of water pumped from the Pa Sak River to the Saraburi Provincial Irrigation Project Office. In addition, the Office will arrange for staff to check the meters to check the volume of water pumped from the Company's Pa Sak River on a monthly basis.
• Since the Pa Sak River is used by many sectors such as agriculture, industry, commerce, and households, water use must be controlled and allocated. The Saraburi Irrigation Project Office will control and allocate water use so that all sectors receive proper and fair water allocation.
• The Company does not drain wastewater outside the plants but has wastewater collecting reservoirs for reuse within the plants. However, the Company arranges a monthly effluent quality analysis.

In addition, TPI Polene Group complies with the 3Rs (Reduce, Reuse, Recycle) principle by increasing the efficiency of water use, including reducing water consumption in the production process and returning wastewater from the office through the treatment system and reusing it along with checking the clear reservoirs and the wastewater reservoirs, as well as the water obtained from wastewater treatment without draining it outside the plants (water treatment), such as watering plants and reusing.

• Guidelines for Measuring Effectiveness Against Established Goals

                TPI Polene Power Public Company Limited has established objectives and goals for water management. To ensure that operations align with these objectives and goals within the ISO 14001 management system, the Company has formed a working group responsible for overseeing operations related to ISO 9001, ISO 14001, ISO 45001, ISO 17025, and ISO 50001 management systems on a monthly basis. This group evaluates operational trends monthly to facilitate improvements or address issues that arise during operations, aiming to achieve the established goals.

• Lessons Learned from Water Operations

                TPI Polene Group has recognized the importance of internal water management to achieve the most cost-effective use of water within the community. The water source for the Company's use will be provided by TPI Polene Public Company Limited, which has raw water sources from two main sources, namely the Pa Sak River and water from surface water reservoirs, as well as wastewater within the factory. The Company has managed it by using raw water from both sources in the production process in a cost-effective manner. Looking at the amount of water from exeternal sources (tap water) produced by TPI Polene Public Company Limited in 2023, the amount has decreased compared to 2022.

• Engagement with Stakeholders in Water Management

                The Company has managed according to the ISO 14001 system, engagement with stakeholders is one of the important requirements in the ISO 14001 system, which is understanding the needs and expectations of stakeholders. For this reason, the Company's business operations do not affect the community's water use. Therefore, the Company has built a pond to collect rainwater for use in the production process. During the summer, the natural water source has a low amount of water, up to 2,680,000 cubic meters, and the Company does not drain waste water outside the factory. The Company will have wastewater collection ponds to reuse wastewater within the plant.

Performance Results

In 2023, the company was able to recycle wastewater from the electricity generation process, amounting to 31,955.08 cubic meters per month, which met the set target of recycling not less than 30,000 cubic meters of wastewater per month from the electricity generation process. Additionally, the water supply usage rate per unit of electricity produced was 3.64 liters per kWh, a decrease from 4.41 liters per kWh in 2022