麻生コンクリート工業 had its JIS certification revoked, after 日総試 confirmed that it had manufactured and shipped ready-mixed concrete using a mix different from the plan for an extended period. It was determined that the company may have concealed this by falsifying records.
麻生コンクリート工業, a Fukuoka Prefecture-based company under the 麻生 Group, had its certification revoked by the General Building Research Corporation of Japan (日総試), a JIS-registered certification body. 日総試 received reports from parties involved that the company had handled operations in a manner that did not comply with quality control standards, and determined, based on the results of an on-site inspection, that the nonconformity was serious.
日総試 confirmed that, for an extended period, the company had manufactured and shipped products using a mix different from the plans submitted to purchasers, and uncovered the falsification of records for the purpose of concealment. In response, the Ministry of Economy, Trade and Industry announced the certification revocation on the same day.
麻生コンクリート工業 has suspended shipments of ready-mixed concrete since 12 September in connection with the issue, while the Kyushu Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism continues to assess the impact on safety.
Regarding the certification revocation, 日総試 stated that its decision was based on the company’s failure to meet the standards for its quality control system and the seriousness of the nonconformity. Attention will focus on the results of the forthcoming investigation and the company’s response.