Employment by the nation's top 30 corporate groups has been at a standstill in the past year.

According to corporate performance tracker CEO Score on Tuesday, the total number of employees at the top 30 business groups, which provide about a million jobs combined, was down by 45-hundred in the past year to post a zero-point-four percent decrease in hiring.

CEO Score surveyed the number of hires as of late last year at 272 affiliates of the top 30 groups that submitted their business reports.

Total employment at the affiliates was down four-tenths of a percent from one-point-013 million at the end of 2014 to one-point-017 million in late 2015.

Seven groups added a thousand more hires in the past year. They are Hyundai Motor, LG, Hanwha, GS, Shinsegae, Hyundai Department Store and poultry processing firm Harim. Five groups—Samsung, POSCO, Hyundai Heavy Industries, Doosan and Kumho Asiana—posted sharp minus growth in their employment numbers.