HCJ2024, one of the largest exhibitions in Japan specializing in the hospitality, food service and catering sector, including hotels and restaurants, was held for four days from February 13 to 16, 2024 at Tokyo Big SiHCJ2024, one of the largest exhibitions in Japan specializing in the hospitality, food service and catering sector, including hotels and restaurants, was held for four days from February 13 to 16, 2024 at Tokyo Big Sight.ght.