Environmental Protection System

To promote environmental preservation activities continually and efficiently, in each manufacturing site of KIOXIA Group in Japan has established environmental preservation procedures overseen by a General Manager with clearly defined responsibilities and authority. An Environment Management Committee deliberates environmental preservation across the entire spectrum of environmental activities, including environmental management systems, policies, and objectives. We have further established a Compliance Committee to supervise and ensure full compliance with all relevant environmental laws and ordinances.

Waste gas scrubber
Structures and specifications for stable processing

Overhead piping
Reducing soil contamination risks

Drainage dike
Preventing wastewater from discharging into underground or public water areas

Wastewater treatment
Stable processing system and preventing outflow of wastewater

Double joints in piping
Monitoring and preventing liquid leakages

Six-sided inspection
Six-sided inspection finds abnormality easily at an early stage

In each of our domestic manufacturing operations, KIOXIA Group monitors water and air quality using voluntary standards that are more stringent than the prevailing legal requirements on a daily basis, in order to minimize the environmental burden of our business operations.

Around-the-clock, automated monitoring is conducted in respect of legally regulated factors such as NOx (nitrogen oxides), SOx (sulfur oxides), T-N (total nitrogen), T-P (total phosphorus), COD (chemical oxygen demand), SS (suspended solids), F (fluorine), and pH (power of hydrogen) levels.

We also voluntarily control items not subject to legal restrictions through sampling conducted at the Analysis Centers located within our manufacturing plants. The Yokkaichi Plant tests around 38,000 samples per year, with KIOXIA Iwate Corporation testing around 10,000.

In FY2021, KIOXIA Group was not subject to any government fines or penalties related to conservation of the environment such as water quality and atmosphere. Please refer to the environmental report for the results of wastewater and exhaust gas.

KIOXIA Group audit teams conduct annual environmental audits of its sites based on the following principles: three “Zen" approach (all aspects, all facilities, all staff), three “Gen" approach (actual place, actual product, actual reality), and visual control approach (look, visualize, show).

Through audits, we promote improvement in compliance with laws and regulations, measurement and management of controlled substances, and the 4S approach (sorting, straightening up, sanitation, sweeping). These audits target eight facilities, including the legally mandated wastewater treatment facilities.