Customers at a three-storey hypermarket in Xujiahui, one of Shanghai's busiest shopping districts, received a special offer yesterday - one free bottle of Asahi beer for every three they bought.
'This is unbeatable value,' said an enthusiastic but nervous saleswoman. 'You should take the offer while it lasts.'
Ajinomoto was also offering a free packet of soup - and a cup - for every three packets bought.
The promotions are no accident.
Asahi and Ajinomoto are on the front line of the wave of anti-Japanese protests that has swept China over the past two weeks, sparking the biggest demonstrations since 1989.
The two firms are on the list of nine companies named in a statement on April 1 on the website of the China Chain Store and Franchise Association (CCSFA), which accused them of supporting the alleged distortion of history in new Japanese textbooks.