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Energy and greenhouse gas emissions

Greenhouse gas management

In 2025, UFOC has complete the greenhouse gas inventory in accordance with GHG Potocol, and the total annual greenhouse gas emissions of the company in 2025 has 507.9489 tons of CO2e. Among them, category 1 direct emissions accounted for 15% of the total, mainly from gas and diesel official vehicles and manufacturing process emissions; Category 2 accounted for 85% of the total, mainly from the power consumption of equipment used in the factory process.
The overall carbon emission intensity of the company increase by 46%Note 7 compared with the previous year. In the future, the plant will track the achievement of the short and medium term carbon reduction targets of the company through routine carbon inventory, so as to contribute to the global carbon reduction.

Greenhouse gas emission statistics in Category 1, Category 2 emission volume and density

  2023 2024 2025
unit tonCO2e % tonCO2e % tonCO2e %
Category 1 102.3990 18% 98.0719 17% 75.7055 15%
Category 2 472.2715 82% 493.5670 83% 432.2434 85%
Category 1 & 2 total 574.6705 100% 591.6389 100% 507.9489 100%
Category 1 + Category 2 Intensity
(tonCO2e/ million revenue)
1.5568   1.8254   0.9827  
Increase/decrease by % from previous year (46)% 17% (11)%

Note 1: Greenhouse gas coverage: No. 12, Yan Xin 4th Road, East Hsinchu City / 2nd Floor, No. 273, Xinhu 3rd Road, Neihu District, Taipei City / Shiding District, No. 6, Section 1, Wenshan Road, Shiding District, Taipei City/ 15F-8, No. 651, Section 2, Yonghua Road, Anping District, Tainan City / No. 678-3, Zuoying Road, Zuoying District, Kaohsiung City / No. 31, Lane 299, Shenjing Road, Baoshan Township, Hsinchu City.
Note 2: GHG Factor citation: EPD GHG Emission Factor Management Table 6.0.4, GHG Emission Inventory Practice Guide 113.
Note 3: Inventory methodology: GHG Potocol.
Note 4: Greenhouse gas inventory category: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), nitrogen trifluoride (NF3), sulfur hexafluoride (SF6), hydrofluorocarbons (HFCS), perfluorocarbons (PFCs) total 7 greenhouse gases.
Note 5: The greenhouse gas inventory was conducted using the operational control method.
Note 6: Emission intensity = (Category 1 + Category 2 total CO2 equivalent)/ Individual company total annual revenue.
Note 7: Revenue grew by about 59% compared to the previous year.

Greenhouse gas emission statistics in Category 3~6 emission volume and density

  2023 2024 2025
unit tonCO2e % tonCO2e % tonCO2e %
Category 3 Indirect emissions from transport 107.8793 14% 88.0863 4% 133.3693 8%
Category 4 organizations use products for indirect emissions 2,612.6022 86% 2,416.8025 96% 1,601.8376 92%
Category 5 Indirect emissions from products of the using organization - - - - - -
Category 6 Other indirect emissions (CO2e/ million revenue) - - - - - -
Category Three totals the total 2,720.4815 100% 2,504.8888 100% 1,735.2069 100%

Note 1: Since 2022, the company has started to conduct Category 3 greenhouse gas inventory, emission factor reference, academic papers, similar products or Simarpro, Environmental Protection Department and other materials.
Note 2: The scope of Category 3 covers upstream and downstream transportation and distribution, employee commuting, disposal of solid and liquid waste, downstream leased assets, investments and other GHG emissions in the value chain.
 

Waste management system

The main waste comes from business waste generated during the fiber optic cable manufacturing process, and it contains a small amount of hazardous waste. All hazardous waste is stored in designated safety cabinets according to regulations, with a dedicated person recording each time it's produced, as well as monthly regular waste generation and temporary storage reports. All waste is handled and transported by qualified third-party environmental service providers. In the Taipei/Tainan/Kaohsiung office, only general household waste, waste plastics, metals and paper are classified according to the waste classification standards set by the building, and the management of the building commissions a third-party qualified cleaner to handle them.
In order to avoid the negative impact of the waste from its operations on the neighboring communities and the ecology, the company follows the Waste Control Procedure (EP-003) established by the Ministry of Environment, and carries out an annual vehicle audit on the hazardous waste scavengers by the factory unit, and tracks the transport path of the waste scavengers through GPS to ensure that the waste is properly disposed of.
In 2025, Lianguang Tong completed the on-site audit of two waste cleaner contractor, and no waste dumping and violations were found. In the future, the audit will continue to be conducted against the cleaner, in order to maintain the goal of zero waste violations.

Waste value chain management practices

Waste value chain management measures
Upstream of the value chain - raw materials Factory monthly statistics for incoming materials
Own operation - Office and factory waste Clearly label the temporary storage space of hazardous waste according to the waste management code, and collect quantitative data according to the existing situation.
Waste disposal down the value chain In the process of removal and treatment, the Internet and the declaration of the triple bill in accordance with the regulations, and the on-site audit of the hazardous waste disposal provider.

Waste generation

In 2025, the total amount of waste is 34.00 tons, The waste intensity also decrease by 30.5% compared to last year. 
Mainly due to the growth of orders resulting in the doubling of raw material shipments, packaging waste and process waste. In the future, we will continue to track the trend of various waste changes, and gradually improve the recycling rate of resources, in order to reduce the impact of our operations on the external environment.
 

Waste generation 2023 2024 2025
General industrial waste (tons) 50.95 48.77 33.94
Hazardous industrial waste (tons) 0.04 0.06 0.06
Total Waste (tons) 50.99 48.83 34.00
Annual Growth Rate (%) 20.70% (4.25)% (30.5)%
Waste Density (tons/million revenue) 0.14 0.15 0.07
 

Water resources management

Water resources risk assessment

With the intensification of extreme climate in recent years, the uneven distribution of global rainfall has become the norm, and the frequency and severity of rainstorm, drought and flood have exceeded the past record year by year, which not only affects the general livelihood of water, but also increases the supply chain instability of enterprises and the risk of plant operation interruption. Water resource risk management has become an issue that cannot be ignored in enterprise operation.
In order to assess whether there is Water Risk in each operation base of Lianguangtong, we adopted the online tool Aqueduct Water Risk Atlas of the World Resources Institute to analyze the water intake pressure of each base in 2025, and the identification results showed that all the bases of Lianguangtong were not located in areas with high water pressure. In the future, we will continue to track and evaluate the water resources pressure of each site year by year to avoid the potential impact of common water on local residents and ecology.

The destination of water intake and discharge at each point

Operation location Water source Watershed Drainage treatment level Final destination  Water pressure
Hsinchu Head office Third-party water Baoshan reservoir Sewage treatment plant pipeline Hsinchu Sewage treatment plant Middle-Low (10-20%)
Taipei office Third-party water Feitsui reservoir Sewage treatment plant pipeline Neihu Sewage treatment plant Middle-Low (10-20%)

Wastewater discharge management

In the part of wastewater discharge, in order to avoid the impact of process water on the local ecology, the Hsinchu plant is uniformly commissioned by the Grade A wastewater treatment plant of Zhuke, main wastewater: air conditioning water accounts for about 63.35%, domestic water accounts for about 33.88%, and process water accounts for about 0.76%, which is confirmed to meet the local wastewater discharge requirements and discharged into the Douqian River. The Taipei/Tainan/Kaohsiung office only has domestic waste water, which does not need to be tested, and is discharged into the Keelung River after unified management and treatment by the sewage pipe of the building into the lake sewage treatment plant in its jurisdiction. Only the Hsinchu operation base is commissioned by the Ministry of Environment to provide qualified third-party units to conduct water quality testing every year, and discharge according to local sewer water quality standards. In 2025, the wastewater testing values of the whole plant of Lianguangtong meet the requirements of local laws and regulations, and there is no violation of local sewage discharge regulations.

Water resource management or reduction actions

UFOC fully understands the importance of saving water. In recent years, frequent extreme droughts around the world have further highlighted how crucial water resource management is for business operations. So, besides promoting daily water-saving practices in all our plants, we also encourage each plant to evaluate and take stock of possible water-saving measures every year, aiming to reduce reliance on water resources and minimize the impact of sudden water shortages on the company's operations.
In 2025, UFOC plans to set the two water dispensers in the office to turn off the heating/circulation functions outside of working hours to reduce standby heating and rinsing water usage. It's estimated that this could save about 253L (calculation method: assume each dispenser provides 32 L/hr; turned off for 11 hours at night; estimated 30 days a month, 12 months a year; calculation = (32L/hr x 11hr x 30 days x 12 months x 2 units) / 1,000L/m³ = 253.44m³).

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