On November 12, ahead of the state-run College Scholastic Aptitude Test, the Lotte Department Store is promoting DHA Chocolate at their main store located at Sogong-dong, Jung-gu, Seoul. The product has been produced under cooperation of a Japanese biomedical research institute and Cake Art, a chocolate company. It has been advertised that since it contains DHA substances that are good for the brain, it may help examinees improve their concentration. Products are priced between 12,000 and 18,000 won, and sales will continue until November 15.