The defendant is a company running cross-city bus transportation business, and the plaintiffs are drivers who work or worked for the defendant company.

A collective agreement was concluded between the B-Organization C-Trade (hereinafter referred to as the "trade union") to which the plaintiffs belong and the D-Business Partnership to which the defendant belongs (hereinafter referred to as the "Business Union"), and the main contents of the collective agreement are as follows:

1) The working hours under Article 15 of the collective agreement in 2006 shall correspond to Article 49 of the Labor Standards Act, but the extended working hours and recess hours pursuant to Article 58 of the same Act shall be governed by a separate labor-management agreement. < Amended by Presidential Decree No. 20069, Feb. 21, 2006; Presidential Decree No. 20090, Feb. 21, 2006; Presidential Decree No. 20090, Feb. 1, 2006; Presidential Decree No. 20090, Feb. 1, 2006; Presidential Decree No. 20060, Feb. 23, 2006; Presidential Decree No. 20060, Feb. 23, 2006; Presidential Decree No. 20060, Feb. 10, 2005>

The ratio of not less than 6 months but not less than 8 years, but not less than 12 years, 350% 550% 650% 1 bonus payment shall be based on the basic salary for full-time workers.

(2) Bonuses shall be paid quarterly, and shall be paid on the following month salary payment date.

Provided, That the monthly calculation shall be paid to the retired person.

(3) The annual payment rate shall be paid from the relevant quarter after six months from the date of entry, and the relevant quarter payment rate shall be 1/2 of the annual payment rate after six months elapse.

(4) December 31, 2001