Data on our Sustainability

Unless otherwise mentioned in a note, the scope of the calculations encompasses Toho Titanium Co., Ltd. and a consolidated subsidiary in Japan.

Environmental safety

Water discharge

Unit FY 2020 FY 2021 FY 2022 FY 2023
Amount of discharge Total 1,000 m3 1,304 1,429 1,550 1,658
Amount of discharge
(excluding discharge to the sea)		 1,000 m3 940 1,081 1,151 1,237
Breakdown Rivers 1,000 m3 434 544 625 587
Sewerage 1,000 m3 435 470 453 576
Other 1,000 m3 71 67 73 74
Sea 1,000 m3 364 348 399 421
Discharge to a body of water BOD t 0.65 0.85 0.47 0.88
COD t 1.39 2.00 2.36 2.31
Nitrogen t 1.11 0.58 0.78 0.71
Phosphorus t 0.07 0.04 0.06 0.05

Amount of discharge in each place

Unit FY 2020 FY 2021 FY 2022 FY 2023
Total discharge 1,000 m3 1,304 1,429 1,550 1,658
Discharge (sea) 1,000 m3 364 348 399 421
Discharge (surface water) 1,000 m3 434 544 625 587
Discharge (groundwater) 1,000 m3 – – – –
Discharge (third party treatment) 1,000 m3 506 537 526 650

Water intake from each water source

Unit FY 2020 FY 2021 FY 2022 FY 2023
Total water intake 1,000 m3 1,866 2,115 2,341 2,411
Water intake (surface water) 1,000 m3 – – – –
Water intake (groundwater) 1,000 m3 1,224 1,370 1,530 1,596
Water intake
(waterworks/industrial water)		 1,000 m3 641 745 811 815
Water intake (seawater) 1,000 m3 – – – –

Emissions to the atmosphere

SOx emissions

Plant Unit FY 2020 FY 2021 FY 2022 FY 2023
Chigasaki Plant t 0.0506 0.0622 0.0318 0.0283
Wakamatsu Plant t 0.0215 0.0106 0.0185 0.0282
Yahata Plant t – – – –
Kurobe Plant t – – – –
Hitachi Plant t – – – –
Other t – – – –
Total t 0.0721 0.0728 0.0503 0.0565

NOx emissions

Plant Unit FY 2020 FY 2021 FY 2022 FY 2023
Chigasaki Plant t 0.8549 1.1405 1.0407 0.9770
Wakamatsu Plant t 1.0420 1.2746 0.9546 1.4812
Yahata Plant t – – – –
Kurobe Plant t – – – –
Hitachi Plant t – – – –
Other t – – – –
Total t 1.8969 2.4151 1.9953 2.4583

Hazardous waste emissions

Unit FY 2020 FY 2021 FY 2022 FY 2023
Total emissions t 21,772 25,025 28,290 26,881
Non-hazardous t 21,334 24,652 27,585 25,959
Hazardous t 439 372 705 922
  • *Hazardous: Specially controlled industrial wastes
  • *Non-hazardous: Wastes other than specially controlled industrial wastes

Unrecycled wastes

Unit FY 2020 FY 2021 FY 2022 FY 2023
Total wastes t 21,772 25,025 28,290 26,881
Final waste disposal amount t 4,813 6,268 9,507 7,950
Final waste disposal ratio % 22.1 25.0 33.6 29.6

Recycled wastes

Plant Unit FY 2020 FY 2021 FY 2022 FY 2023
Chigasaki Plant t 10,058 11,586 11,061 11,121
Wakamatsu Plant t 1,603 1,846 1,098 1,180
Yahata Plant t 558 642 771 742
Kurobe Plant t 1,493 1,438 1,322 1,716
Hitachi Plant t 4 2 3 10
Total t 13,716 15,514 14,255 14,402
Recycling rate % 63.0 54.1 50.4 53.6
Final landfill disposal t 4,813 6,268 9,507 7,950

Energy consumption

Unit FY 2020 FY 2021 FY 2022 FY 2023
Total energy consumption PJ 3.7 4.3 4.8 4.3
  • *1 Calculation scope: Toho Titanium Co., Ltd. and 4 subsidiaries in Japan and abroad
  • *2 Reporting period: FY 2023 (Japan: from April 1, 2023 to March 31, 2024; overseas: from January 1, 2023 to December 31, 2023)

CO2 emissions

Unit FY 2020 FY 2021 FY 2022 FY 2023
Scope 1 1,000 t of CO2 29 32 26 26
Scope 2 1,000 t of CO2 153 182 182 176
Scope 3 1,000 t of CO2 – 298 367 351
Sum of Scopes 1, 2 and 3 1,000 t of CO2 182 512 575 553
  • *1 Calculation scope: Toho Titanium Co., Ltd. and 2 subsidiaries in Japan
  • *2 Emissions resulting from the combustion of the carbon neutral city gas and carbon offset LPG are not counted.
  • *3 The target range of Scope 3 was revised in FY 2022.

Rate of industrial accidents per 1,000 employees in one year (absence of 4 days or longer)

Results for 2023 Goal for 2024
2.4 0.0

*It is the number of workers who get injured or die per 1,000 workers per year, and can be expressed by the following equation:

Rate of accident per 1,000
employees in one year		 ＝ Number of workers
who get injured or die in a year		 × 1,000
Average number of
workers in a year
  • *1 Period: From January 1 to December 31
  • *2 Including the subcontractors of the Toho Titanium Group

Number of cases of each accident in 2023

Tumble Fall Getting stuck Collision with a flying or falling object Tipping over Contact with a harmful object Contact with a high/low-temperature object Recoil Other Total
0 0 1 1 2 4 1 3 3 15

Analysis of accidents in 2023 and future countermeasures

Regarding safety performance in 2023, there were 4 industrial accidents that forced workers to take days off and 11 industrial accidents that did not require workers to take days off.
Regarding industrial accidents that force workers to take days off, we were not able to keep the number of them zero from 2021, and recognized the existence of issues on which we should reflect.
Regarding industrial accidents that do not require workers to take days off, we were not able to attain the goal of reducing the number of them by 50% year on year to 8 or less, but it is decreasing year by year, and it decreased by 2 from the previous year. We think that this is an outcome of our efforts to foster employees’ awareness of safety.
It was found through the statistical analysis of industrial accidents in 2023 that such accidents often occur to workers with less than 3 years of experience like in 2022. The eye part was damaged for half of the victims, and 4 workers suffered from heatstroke in the summer. Regarding the number of cases of each kind of accidents, the cases of contact with a harmful or high/low-temperature object decreased 50% from the previous year, but the cases of recoil and tipping over increased. This indicates that we need to take a broad range of safety measures.
To avoid these accidents, our corporate group will strive to improve the quality of education with IT-based educational programs (for new employees, including mid-career workers, for improving the skills of foremen, and for visits to new work sites) and increase educational opportunities to improve the awareness of safety at each workplace and eradicate industrial accidents.

Fatal accidents

We aim to achieve zero fatal accidents in 2024.

Contract type 2020 2021 2022 2023
Full-time employees 0 0 0 0
Contract workers 1 0 0 0
  • *1 Period: From January 1 to December 31
  • *2 Scope: Toho Titanium Co., Ltd. and 2 subsidiaries in Japan
  • *3 Contract workers are laborers performing work under contract at the above sites

Accident frequency rate

We aim to achieve zero fatal accidents in 2024.

Contract type 2020 2021 2022 2023
Full-time employees 0.46 1.36 0 1.43
  • *1 Period: From January 1 to December 31
  • *2 Scope: Toho Titanium Co., Ltd. and 2 subsidiaries in Japan
  • *3 Contract workers are laborers performing work under contract at the above sites
  • *4 Number of fatalities/injuries per 1,000,000 actual working hours
  • *5 The average in the surveyed industry and the average in the manufacturing industry were taken from the website of the Ministry of Health, Labour and Welfare

Fines for environment-related breaches

Unit FY 2020 FY 2021 FY 2022 FY 2023
Fines for
environment-related
breaches		 1,000 yen 0 0 0 0

Human resources

Percentage of disabled employees (consolidated)

Unit FY 2020 FY 2021 FY 2022 FY 2023
Percentage of
disabled employees		 % 1.9 1.9 2.3 2.5

Ratio of women in the workforce (consolidated)

Unit FY 2020 FY 2021 FY 2022 FY 2023
Ratio of women % 6.8 7.2 7.2 7.7

Full-time employee turnover rate (consolidated)

Unit FY 2020 FY 2021 FY 2022 FY 2023
Turnover rate % 2.5 3.0 3.7 2.7

Total training time of all employees and average training time of 1 employee per year (consolidated)

FY 2020 FY 2021 FY 2022 FY 2023
Total training time of
all employees		 11,771.0 12,717.0 17,016.0 23,957.0
Average training time of
1 employee per year		 11.0 11.4 15.1 20.0

Other

Donations to certified NPOs (consolidated)

Unit FY 2020 FY 2021 FY 2022 FY 2023
Donations 1,000 yen 0 0 0 0

Political donations (consolidated)

Unit FY 2020 FY 2021 FY 2022 FY 2023
Political donations 1,000 yen 0 0 0 0

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