The Royal Swedish Academy of Sciences announced on Oct. 7 that the 2026 Nobel Prize in Chemistry goes to Kenso Soai (硤合憲三), 76, professor emeritus at Tokyo University of Science, and Henri Kagan, professor emeritus at Université Paris-Saclay in France. The citation is "the discovery of nonlinear effects and autocatalysis in asymmetric organic synthesis." Many molecules exist as mirror-image pairs, like a right hand and a left hand (enantiomers), and living things use only one of the pair. In 1986 Kagan found the "nonlinear effect," in which the product tilts toward one hand more strongly than the bias in the catalyst would predict. Soai discovered asymmetric autocatalysis (the Soai reaction), in which a molecule made by a reaction becomes the catalyst for making more of itself, amplifying a vanishingly small bias to nearly 100%, and showed how to reproduce it in the lab. He is the 31st Japanese laureate, and the chemistry prize goes to Japan for a second straight year after Susumu Kitagawa in 2025. Soai held a news conference at Tokyo University of Science on the evening of the 7th and said the call reached him while he was shopping at a supermarket near his home. "I am especially glad to share the prize with the eminent Professor Kagan," he said. "I could not have found it without the staff and the students." Born in Hiroshima Prefecture in 1950, he graduated from the University of Tokyo's Faculty of Science. DailyDrop has not confirmed the prize money.
Life uses only left-handed amino acids and only right-handed sugars. Why one hand survived has been a puzzle for more than a century. The Soai reaction is nearly the only experimental demonstration that "a very small initial bias grows on its own." It gave the hypotheses about the origin of life a chemical foothold. On the industrial side, it sits at the root of asymmetric synthesis, the craft of making a drug's enantiomers in pure form, where one hand can heal and the other can harm.
Daily life does not change tomorrow. But this year's three science prizes share a pattern: not "Nobel equals latest technology," but discoveries from decades ago recognized late. Kagan's finding is 40 years old; Soai's dates to the 1990s. When the budget for basic research comes up, that time lag is worth remembering.
A discovery that added a chapter to the organic chemistry textbook. A rare case of answering the great question of life's origin with an experiment.
Compared with the 2001 prize to Ryoji Noyori and others, which fed straight into drug development, one could argue the distance to application here is longer.
The sentence to remember today is "a very small bias grows on its own." It is a laboratory story, but it is also the most coherent answer yet to why life is left-handed. What to watch: the full translation of the Royal Swedish Academy's explainer, and what Soai names as "the next question" in his Nobel lecture in December. We will revisit this in the days ahead.
NHK (award, reactions) · Tokyo University of Science statement · Mynavi News · nippon.com · Asahi Shimbun (Yahoo) · Mainichi Shimbun (Yahoo, news conference) · THE PAGE (news conference) · Innovatopia · ReseMom (all Oct. 7) · Direct check of the Royal Swedish Academy's original text not yet complete
ScienceSource ✓ Royal Swedish Academy announcement (via press feed) · Press ✓ 8 outlets
Nobel in chemistry for Soai. The discovery that "a tiny bias grows on its own"
Kenso Soai (硤合憲三), 76, professor emeritus at Tokyo University of Science, shares the prize with France's Henri Kagan. The citation: "the discovery of nonlinear effects and autocatalysis in asymmetric organic synthesis." He is the 31st Japanese laureate, and the second in chemistry in two years after Susumu Kitagawa last year
The Royal Swedish Academy of Sciences announced on Oct. 7 that the 2026 Nobel Prize in Chemistry goes to Kenso Soai, professor emeritus at Tokyo University of Science, and Henri Kagan, professor emeritus at Université Paris-Saclay in France. Many molecules exist as mirror-image pairs, like a right hand and a left hand (enantiomers). In 1986 Kagan found the "nonlinear effect," in which the product tilts toward one hand more strongly than the bias in the catalyst would predict. Soai discovered asymmetric autocatalysis (the Soai reaction), in which a molecule made by a reaction becomes the catalyst for making more of itself, amplifying a vanishingly small bias to nearly 100%, and he showed how to reproduce it in the lab.
Soai held a news conference at Tokyo University of Science on the evening of the 7th. He said the call reached him while he was grocery shopping at a supermarket near his home. "I am especially glad to share the prize with the eminent Professor Kagan," he said. "I could not have found it without the staff and the students." Born in Hiroshima Prefecture in 1950, he graduated from the University of Tokyo's Faculty of Science. Outlets reported that the work is expected to find uses in developing drugs, fragrances and sweeteners.
Open the story and DailyDrop's take
By the numbers
31stJapanese Nobel laureate (including those born in Japan). Second chemistry prize in two years
1986The year Kagan reported the "nonlinear effect." The prize comes 40 years later
76Soai's age. The discovery dates to the 1990s, in research at Tokyo University of Science
The Japan Fair Trade Commission on Oct. 7 raided Asahi Breweries, Kirin Brewery, Suntory and Sapporo Breweries in a compulsory investigation on suspicion of violating the Antimonopoly Act through unreasonable restraint of trade. Head offices in Tokyo were among the sites searched. A compulsory investigation is a criminal-procedure investigation under a court warrant, a procedure that keeps a criminal referral to prosecutors in view. According to the reports, it is the first time major brewers have been raided on suspicion of a price cartel. Citing people familiar with the matter, outlets reported that sales managers from the four head offices met informally around the "First Thursday Club," the meeting held on the first Thursday of each month by the industry group Brewers Association of Japan, and are suspected of running a cartel for several years, including setting specific targets for the size of increases in shipment prices to wholesalers. The prices at issue are shipment prices for beer-type drinks including happoshu and "third-category" beer; the reports do not say the companies agreed on the prices charged at supermarkets or restaurants. The four made an across-the-board price increase on their main products in April 2025, citing higher ingredient costs. At a Sept. 2 news conference the commission's secretary general had said that discussing prices or the timing of increases with competitors would raise issues under the Antimonopoly Act. Asahi told JNN, "It is true that we are being investigated. We will cooperate fully." Kirin Holdings said on its website that it "takes the matter seriously and will cooperate fully." DailyDrop has not confirmed comments from Suntory or Sapporo.
Beer is close to the household budget, and everyone saw the April 2025 increase on the shelf. The question is whether the size of that increase was the result of competition or of an "understanding." The other point is the weight of the procedure. The commission chose not an ordinary on-site inspection but a criminal-procedure probe with warrant powers to search and seize. That is close to a declaration that it is weighing a criminal case from the start, rather than settling for an administrative surcharge.
Shelf prices will not fall tomorrow. The usual path runs analysis of seized material → decision on referral → prosecutors' investigation → in parallel, the commission's cease-and-desist order and surcharge, and it normally takes years. Surcharges go to the treasury, not back to consumers; getting money back takes a separate damages suit. For now all a reader can do is watch each company's formal comment and the wording of the next price announcement.
Four companies hold nearly the whole domestic beer market. Aligning "targets" for the size of an increase is enough by itself to break price formation in the market. A raid with a criminal referral in view is warranted.
If ingredient costs, logistics and liquor-tax changes hit all four alike, increases of similar size at similar times are also natural. Exchanging information and agreeing on prices carry different legal weight. Reports that call it a "cartel" at the allegation stage deserve some distance.
Only two things are certain today: the commission chose a criminal-procedure investigation, and Asahi and Kirin acknowledged being investigated. "Decided at the First Thursday Club" comes from unnamed sources; no document has surfaced. What to watch is whether the commission moves to a referral, and the period and products it names when it does. Whether that period includes the April 2025 increase will decide how heavy this story is.
NHK nd-20261007de55664 · Nikkei · Jiji Press 2026100700343 · Mainichi Shimbun (Yahoo) · TBS NEWS DIG (Yahoo, company comments) · Kyoto Shimbun · coki (context of the Sept. 2 news conference) (all Oct. 7) · No formal JFTC announcement; seized material not public
Four big brewers raided. Did an informal huddle after the "First Thursday Club" set the size of price hikes?
A "compulsory investigation" is a criminal-procedure probe in which the commission can search and seize under a court warrant. It is a step heavier than an on-site inspection and is designed with a criminal referral to prosecutors in view. No penalty or guilt has been decided.
The Japan Fair Trade Commission on Oct. 7 raided Asahi Breweries, Kirin Brewery, Suntory and Sapporo Breweries in a compulsory investigation (a criminal-procedure investigation) on suspicion of violating the Antimonopoly Act through unreasonable restraint of trade. Citing people familiar with the matter, outlets reported that sales managers of the four met informally around the "First Thursday Club," the monthly meeting of the industry group Brewers Association of Japan, and for several years allegedly set targets for the size of increases in shipment prices to wholesalers. The prices at issue are shipment prices for beer-type drinks including happoshu and "third-category" beer, not retail prices themselves. All four made an across-the-board price increase in April 2025. Asahi and Kirin acknowledged being investigated and said they would "cooperate fully." DailyDrop has not confirmed comments from Suntory or Sapporo.
Open
Word of the day
cartelANTITRUST
An agreement among companies that should be competing to fix prices, volumes or the timing of price increases. It counts as "unreasonable restraint of trade" under the Antimonopoly Act and can draw criminal penalties as well as surcharges. Even without fixing prices outright, aligning "targets" for the size of an increase can be a violation. It is the heart of today's case.