On October 7, Japan’s Fair Trade Commission conducted compulsory investigations into Asahi, Kirin, Suntory, and Sapporo over suspected coordination of beer price increases. No violation has been confirmed, and the investigation is ongoing. But if a cartel is established, the companies could face substantial surcharges.

Potential size of the surcharges

Surcharges are generally calculated at 10% of the sales covered by a violation. Using an estimated domestic beer market of ¥1.6 trillion a year, the total penalty would be about ¥160 billion for one year of activity, ¥480 billion for three years, or ¥800 billion for five years—assuming the entire market was affected.

For a rough three-year estimate, the calculation assigns market shares of 35% each to Asahi and Kirin, and 15% each to Suntory and Sapporo. On that basis, Asahi and Kirin would each face about ¥168 billion, while Suntory and Sapporo would each face about ¥72 billion.

Could several years of profits be erased?

Compared with the companies’ profits in business segments that include beer, the estimated penalties would represent around 0.7 years of profit for Suntory and approximately 2.8 years for Sapporo. A surcharge on this scale could wipe out years of earnings from their alcoholic-beverage businesses.

The potential financial impact

At the end of June 2026, the companies’ consolidated equity ratios were 50.8% for Asahi, 40.0% for Kirin, 47.3% for Suntory, and 58.9% for Sapporo.

If the estimated three-year surcharges were deducted directly from equity, the reduction would amount to 5.3% for Asahi, 12.3% for Kirin, 2.2% for Suntory, and 14.0% for Sapporo. The impact would be especially significant for Kirin and Sapporo.

Sapporo’s position also illustrates how its finances have changed. Its equity was about ¥218.9 billion at the end of 2025, so a ¥72 billion surcharge would have equalled roughly one-third of that amount. Following progress on the sale of its real estate business, equity had risen to about ¥512.9 billion by the end of June 2026, and its equity ratio had increased from 33.5% to 58.9%. Before the sale, the financial blow would have been considerably greater.

Possible consequences for business plans

Even for Asahi and Suntory, which have substantial overseas operations and strong financial foundations, a large surcharge could affect investment and shareholder returns. Kirin may also need to reconsider how it allocates capital across its alcoholic-beverage, pharmaceutical, and health-science businesses.

Sapporo’s plans warrant particular attention. The company has aimed to separate its real estate business and focus growth investment and shareholder returns on beer. In July 2026, the former Sapporo Holdings changed its trade name to Sapporo Breweries. The investigation could influence those plans.

The allegations’ scope and any eventual surcharges remain unknown. But the estimates show that a penalty could erase several years of profit and undermine years of management efforts—an important reminder of the cost of failing to comply with competition law.