Detailed data

Environmental Data by Operations Base

[Chemicals] Substances subject to PRTR
[Atmosphere] Measured values are the maximum values
[Water quality] pH: Hydrogen-ion concentration/ COD:Chemical oxygen demand/ BOD: Biochemical oxygen demand/ SS: Suspended solids in water/ Oil content: N-hexane extract content/ ND: Lower than determination limit/ Values in parenthesis show the daily average values
[Regulated value] JTEKT internal standards (some more stricter than regulatory amounts)
[Substances subject to PRTR] Shows substances which are handled in amounts of 1,000 kg/year or more. Substance number shows the legislative number for each of the No. 1 type chemical substances of the PRTR regulations. Removal processing amount is the amount of substances subject to PRTR which are incinerated, neutralized, broken down, put through reaction treatment, etc. within JTEKT premises. Consumed amount is the amount of substances subject to PRTR which are changed to another substance through reaction treatment, or removed from JTEKT premises in, or attached to, products.
[Target period] April 2017 to March 2018

Domestic plants, Operations center

Kokubu Plant
No. of Employees
1,995
Production items
  • All types of ball bearings
  • Roller bearings
  • Ultra-large bearings
  • High-accuracy bearings
Overall environmental data
* Due to sewage disposal, there are no regulation values for COD, nitrogen, or phosphorus
Water quality measurement data
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Value K
Noise / Vibration data
Unit : dB
Foul odor
Unit : ppm
* Malodorous substances (22 substances) were measured.
* All items not listed were below minimum determination limit.
Substances subject to PRTR
Unit : kg/year
Kariya Plant
No. of Employees
1,734
Production items
  • Machine tools
  • Damper pulleys
  • Machined parts
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Nm3/hr
Noise / Vibration data
Unit : dB
Foul odor
Substances subject to PRTR
Unit : kg/year
Tokushima Plant
No. of Employees
1,197
Production items
  • Ball bearings
  • Water pump bearings
  • Cylindrical roller bearings
  • Special environment bearings
  • Double row angular contact ball bearings
  • Hub units
  • Tensioner pulleys
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Value K
Noise / Vibration data
Unit : dB
Foul odor
* Malodorous substances (22 substances) were measured.
* All items were below minimum determination limit.
Substances subject to PRTR
Unit : kg/year
Okazaki Plant
No. of Employees
931
Production items
  • 4WD coupling
  • Linear solenoid valves for AT and CVT
  • Oil pumps for AT and CVT
  • Propeller shafts
  • Cast parts
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Unit : mg/L (Excluding pH)
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Nm3/hr
Noise / Vibration data
Unit : dB
Foul odor
Substances subject to PRTR
Unit : kg/year
Tokyo Plant
No. of Employees
533
Production items
  • Needle roller bearings
  • Constant velocity joints
  • Drive shafts
  • Propeller shafts
Overall environmental data
* Due to sewage disposal, there are no regulation values for COD
Water quality measurement data
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Value K
Noise / Vibration data
Unit : dB
Foul odor
* Changed to the odor index in FY2016
Substances subject to PRTR
Unit : kg/year
Kagawa Plant
No. of Employees
908
Production items
  • Tapered roller bearings
  • Hub units
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Value K
Noise / Vibration data
Unit : dB
Foul odor
Unit : ppm
Substances subject to PRTR
Unit : kg/year
Nara Plant
No. of Employees
1,925
Production items
  • Electric power steering
  • Electric pumps for hydraulic-electric type power steering
  • Hydraulic power steering
  • Manual steering
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Value K
Noise / Vibration data
Unit : dB
Substances subject to PRTR
* No substances had handling amounts of over 1,000 kg /year
Higashi-kariya operations center
No. of Employees
267
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Nm3/hr
Noise / Vibration data
Unit : dB
Foul odor
Substances subject to PRTR
* No substances had handling amounts of over 1,000 kg /year
Toyohashi Plant
No. of Employees
685
Production items
  • Hydraulic power steering
  • Manual steering
  • Safety handle column
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Value K
Noise / Vibration data
Unit : dB
Foul odor
Substances subject to PRTR
* No substances had handling amounts of over 1,000 kg /year
Tadomisaki Plant
No. of Employees
972
Production items
  • Drive shafts
  • 4WD coupling
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Nm3/hr
Noise / Vibration data
Unit : dB
Foul odor
Substances subject to PRTR
* No substances had handling amounts of over 1,000 kg /year
Hanazono Plant
No. of Employees
1,791
Production items
  • Electric power steering
  • Hydraulic power steering pump
  • Control computer
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Nm3/hr
Noise / Vibration data
Unit : dB
Foul odor
Substances subject to PRTR
* No substances had handling amounts of over 1,000 kg /year
Kameyama Plant
No. of Employees
538
Production items
  • Ball bearings
  • Clutch bearings
  • Clutch pulleys for alternator
  • Hub units
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Nm3/hr
Noise / Vibration data
Unit : dB
Foul odor
* Malodorous substances (22 substances) were measured.
* All items were below minimum determination limit.
Substances subject to PRTR
* No substances had handling amounts of over 1,000 kg /year
Sayama Plant
No. of Employees
220
Production items
  • TORSEN
Overall environmental data
Water quality measurement data
Unit : mg/L (Excluding pH)
Atmosphere measurement data
Unit : Dust=g/Nm3 NOx=ppm SOx=Nm3/hr
Noise / Vibration data
Unit : dB
Foul odor
* Vibration and foul odor have not been measured as they occur in regions outside of the regions covered by regulations
Substances subject to PRTR
* No substances had handling amounts of over 1,000 kg /year

Global business sites

Domestic group production companies
Koyo Machine Industries Co., Ltd.
Koyo Sealing Techno Co., Ltd.
Koyo Thermo Systems Co., Ltd.
Daibea Co., Ltd.
Koyometaltec Co., Ltd.
KJK Co., Ltd.
NIPPON NEEDLE ROLLER MFG. Co., Ltd.
Koyo Heat Treatment Co., Ltd.
Taiho Co., Ltd.
Yamato Seiko Co.,Ltd.
Toyooki Kogyo Co., Ltd.
CNK Co., Ltd.
Koyo Electronics Industries Co., Ltd.
Utsunomiya Kiki Co., Ltd.
HOUKO Co., Ltd.
Toyoda Van Moppes Ltd.
FORMICS Co., Ltd.
Tokio Seiko Corporation
Fuji Kiko Co., Ltd.
Domestic group Total
* Emissions = Amount of recyclables sold + amount of waste disposed
* Includes chemical substances subject to PRTR which have a handling amount of 1000 kg/year or more.
Global business sites
[Europe]
JADS
(JTEKT AUTOMOTIVE DIJON SAINT-ETIENNE S.A.S.)
JALY
(JTEKT AUTOMOTIVE LYON S.A.S.)
JHPI
(JTEKT HPI S.A.S.)
JAUK
(JTEKT AUTOMOTIVE UK LTD.)
KBVM
(KOYO BEARINGS VIERZON MAROMME SAS)
KBE
(KOYO BEARINGS(EUROPE)LTD.)
JAPL
(JTEKT AUTOMOTIVE CZECH PLZEN,S.R.O.)
KBCZ
(KOYO BEARINGS CESKA REPUBLIKA S.R.O.)
JAPA
(JTEKT AUTOMOTIVE CZECH PARDUBICE, S.R.O.)
JTRE
(JTEKT TORSEN EUROPE S.A.)
KRA
(KOYO ROMANIA S.A.)
KBDE
(KOYO BEARINGS DEUTSCHLAND GMBH)
Europe group Total
* Emissions = Amount of recyclables sold + amount of waste disposed
Global business sites
[China]
JATJ
(JTEKT AUTOMOTIVE (TIANJIN) CO., LTD.)
JSSX
(JTEKT STEERING SYSTEMS (XIAMEN) CO., LTD.)
WKB
(WUXI KOYO BEARING CO., LTD.)
KWA
(WUXI KOYO BEARING CO., LTD.)
KDC
(KOYO BEARING DALIAN CO., LTD.)
KLF
(KOYO LIOHO (FOSHAN) AUTOMOTIVE PARTS CO., LTD.)
KAW
(KOYO AUTOMOTIVE PARTS (WUXI) CO., LTD.)
JDI
(JTEKT DALIAN INNOVATION AUTOMOTIVE CO., LTD.)
KNBW
(KOYO NEEDLE BEARINGS (WUXI) CO., LTD.)
China group Total
* Emissions = Amount of recyclables sold + amount of waste disposed
Global business sites
[Asia/Oceania]
JTC
(JTEKT(THAILAND) CO., LTD.)
JATH
(JTEKT AUTOMOTIVE(THAILAND) CO., LTD.)
KJKC
(KOYO JICO KOREA CO., LTD.)
JAMY
(JTEKT AUTOMOTIVE(MALAYSIA)SDN. BHD.)
KBIN
(KOYO BEARINGS INDIA PVT. LTD.)
JPC
(JTEKT PHILIPPINES CORPORATION)
JID
(PT.JTEKT INDONESIA)
JIN
(JTEKT INDIA LTD.)
Asia/Oceania group Total
* Emissions = Amount of recyclables sold + amount of waste disposed
Global business sites
[North America/South America]
JATV
(JTEKT AUTOMOTIVE TENNESSEE-VONORE, LLC)
JATM
(JTEKT AUTOMOTIVE TENNESSEE-MORRISTOWN, INC.)
JATX
(JTEKT AUTOMOTIVE TEXAS, L.P.)
KBNA
(KOYO BEARINGS NORTH AMERICA LLC)
JASC
(JTEKT AUTOMOTIVE SOUTH CAROLINA,INC.)
KBCA
(KOYO BEARINGS CANADA INC.)
JAMX
(JTEKT AUTOMOTIVE MEXICO,S.A de C.V)
JABR
(JTEKT AUTOMOTIVA BRASIL LTDA.)
JAAR
(JTEKT AUTOMOTIVE ARGENTINA S.A.)
North America / South America group Total
* Emissions = Amount of recyclables sold + amount of waste disposed