The award citation concerns the discovery of nonlinear effects and autocatalysis in asymmetric organic synthesis, according to the description reported by sources covering the prize.
According to the South China Morning Post, the prize was announced by the Royal Swedish Academy of Sciences in Stockholm.
The same outlet identifies Henri B. Kagan as being affiliated with Université Paris-Sud in Orsay, France.
For Kenso Soai, the South China Morning Post instead reports an affiliation with the Tokyo University of Science.
The recognition therefore brings together, in the Nobel citation, two elements of asymmetric organic synthesis: nonlinear effects and autocatalysis.
The award to Kagan and Soai was reported consistently by the South China Morning Post, Tagesschau and France 24.