Kobayashi Pharmaceutical Red Yeast Rice Incident: No Administrative Records for Puberulic Acid
Kunsei Club announced that after requesting information from 5 government agencies regarding the 2024 Kobayashi Pharmaceutical incident, documents providing the basis for identifying puberulic acid were 'non-existent' across all agencies.
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- 📰 Published: April 28, 2026 at 19:00
- 🔍 Collected: April 28, 2026 at 10:32
- 🤖 AI Analyzed: April 28, 2026 at 14:17 (3h 44m after Collected)
Kunsei Club Co., Ltd. (Hayashima-cho, Tsukubo-gun, Okayama Prefecture) announced that as a result of information disclosure requests made to five agencies—the Ministry of Health, Labour and Welfare (MHLW), the National Institute of Health Sciences (NIHS), the Consumer Affairs Agency, the Ministry of Agriculture, Forestry and Fisheries (MAFF), and Osaka City—regarding the 2024 Kobayashi Pharmaceutical red yeast rice (beni-koji) issue, it was confirmed that administrative documents serving as the basis for identifying the causative agent and publicly disclosing the company name were 'non-existent' at all agencies.
1. Results of Information Disclosure Requests
In response to information disclosure requests to the following five agencies, all responded that the corresponding documents do not exist.
(1) Ministry of Health, Labour and Welfare (Document Nos: MHLW No. 0919-2 / MHLW No. 0805-2)
Inquiry: Documents providing the basis for identifying puberulic acid as the causative agent, toxicity evaluation data.
Response: Non-existent
(2) National Institute of Health Sciences (Document Nos: NIHS No. 0926001 / NIHS No. 0306002)
Inquiry: Documents regarding the identification basis of puberulic acid, documents regarding decision-making for administrative judgment.
Response: Non-existent
(3) Osaka City Health Center (Document No: OCHC No. 8033)
Inquiry: Documents regarding the decision-making process for using the term 'puberulic acid.'
Response: Non-existent
(4) Ministry of Agriculture, Forestry and Fisheries (Document No: MAFF No. 236)
Inquiry: Documents regarding the decision-making process for disseminating information based on the premise of the term 'puberulic acid.'
Response: Non-existent
(5) Consumer Affairs Agency (Document Nos: CAA No. 187 / CAA No. 319 / CAA No. 184)
Inquiry: Documents regarding the decision-making process for disseminating information using the term 'puberulic acid.'
Response: Non-existent
2. Confirmed Facts
Through this matter, the following facts were confirmed:
- There are no administrative documents regarding the basis for identifying the causative agent (puberulic acid).
- No sharing of evidentiary documents between administrative agencies has been confirmed.
3. Positioning of this Matter
These results indicate an absence of records that are prerequisites for administrative judgment and may affect the procedural validity of the series of responses, including the public disclosure of the company name.
Primary Materials (Disclosure Decision Notification PDFs):
Official response PDFs from each agency can be viewed at the following links:
- MHLW: https://kunsei.com/archives/602
- NIHS: https://kunsei.com/archives/600
- Osaka City Health Center: https://kunsei.com/archives/743
- MAFF: https://kunsei.com/archives/752
- Consumer Affairs Agency: https://kunsei.com/archives/761
Corporate Research Public Page (All Materials): https://kunsei.com/archives/765
Company Profile:
Company Name: Kunsei Club Co., Ltd.
CEO: Masaaki Mori (Pharmacist)
Location: Hayashima-cho, Tsukubo-gun, Okayama Prefecture
Business: Meat product manufacturing (Smoked foods)
Contact: sales@kunsei.co.jp
Website: https://kunsei.com
1. Results of Information Disclosure Requests
In response to information disclosure requests to the following five agencies, all responded that the corresponding documents do not exist.
(1) Ministry of Health, Labour and Welfare (Document Nos: MHLW No. 0919-2 / MHLW No. 0805-2)
Inquiry: Documents providing the basis for identifying puberulic acid as the causative agent, toxicity evaluation data.
Response: Non-existent
(2) National Institute of Health Sciences (Document Nos: NIHS No. 0926001 / NIHS No. 0306002)
Inquiry: Documents regarding the identification basis of puberulic acid, documents regarding decision-making for administrative judgment.
Response: Non-existent
(3) Osaka City Health Center (Document No: OCHC No. 8033)
Inquiry: Documents regarding the decision-making process for using the term 'puberulic acid.'
Response: Non-existent
(4) Ministry of Agriculture, Forestry and Fisheries (Document No: MAFF No. 236)
Inquiry: Documents regarding the decision-making process for disseminating information based on the premise of the term 'puberulic acid.'
Response: Non-existent
(5) Consumer Affairs Agency (Document Nos: CAA No. 187 / CAA No. 319 / CAA No. 184)
Inquiry: Documents regarding the decision-making process for disseminating information using the term 'puberulic acid.'
Response: Non-existent
2. Confirmed Facts
Through this matter, the following facts were confirmed:
- There are no administrative documents regarding the basis for identifying the causative agent (puberulic acid).
- No sharing of evidentiary documents between administrative agencies has been confirmed.
3. Positioning of this Matter
These results indicate an absence of records that are prerequisites for administrative judgment and may affect the procedural validity of the series of responses, including the public disclosure of the company name.
Primary Materials (Disclosure Decision Notification PDFs):
Official response PDFs from each agency can be viewed at the following links:
- MHLW: https://kunsei.com/archives/602
- NIHS: https://kunsei.com/archives/600
- Osaka City Health Center: https://kunsei.com/archives/743
- MAFF: https://kunsei.com/archives/752
- Consumer Affairs Agency: https://kunsei.com/archives/761
Corporate Research Public Page (All Materials): https://kunsei.com/archives/765
Company Profile:
Company Name: Kunsei Club Co., Ltd.
CEO: Masaaki Mori (Pharmacist)
Location: Hayashima-cho, Tsukubo-gun, Okayama Prefecture
Business: Meat product manufacturing (Smoked foods)
Contact: sales@kunsei.co.jp
Website: https://kunsei.com