One-stop service offered by Hiyoshi
Hiyoshi has all of the “measuring,” “observing,” and “protecting” capabilities necessary to solve environmental problems,
from the testing department having the latest equipment, to the operation and maintenance department of
environmental infrastructure, and the waste treatment department. Through the innovative power of professional skills
working together, we are creating solutions that only Hiyoshi’s One-Stop Service can provide.

Testing Services
With our unique know-how cultivated through years of experience, experienced technical staff, and state-of-the-art facilities, we provide a full range of environmental analysis, investigation, and consulting services.
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Industrial Chemicals
In addition to the sale of industrial chemicals, we also provide total support from the selection of the most appropriate chemicals based on the results of measurement and analysis inside the facility to operational consulting.
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Facility Management
We provide optimal maintenance and management of water and sewage facilities, waste incinerators, and other infrastructure facilities.
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Environmental Conservation
We protect the urban and natural environment by using special vehicles, equipment, and professionally qualified experts to perform general waste treatment, road cleaning and maintenance, and sewer pipe cleaning and maintenance.
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