According to Global Network cited Taiwan's "Central News Agency" and other Taiwanese media sources, unlike the same group's Evergreen Shipping Hao issued a year-end bonus of more than four or five months of monthly salary, EVA Air gave a year-end bonus of 3 months of monthly salary, Taiwan's Evergreen Airline subsidiary EVA Air Service's year-end bonus was only 1 month's monthly salary. A large number of EVA Airline employees were dissatisfied with the amount of year-end bonuses and collectively did not attend work during the New Year's Day holiday, leading to chaos in flights on the island.

Source Taiwanese media
After communication and persuasion from Evergreen airlines, about 65 people were left to take leave yesterday. With other manpower rushing to help, even senior managers went to the front line to move their luggage. The impact has slowed down yesterday, but the average flight delay is still 50 minutes. EVA Air emphasized that it will return to normal today. However, because there is still no consensus between labor and management on the year-end, and management has a tough attitude, some employees have revealed that they will still take legal holidays during the Spring Festival, which may further affect the Spring Festival transportation.
In addition, there is a bigger unexploded bomb in the Spring Festival transportation crisis, which may be Taoyuan Airlines, a subsidiary of China Airlines, which accounts for 70% of the ground handling workload of Taoyuan Airport. The Taoqin enterprise union said yesterday that the collective agreement has not been adjusted for more than 20 years. The six major demands raised by the union were due to management's tough attitude and unwillingness to communicate, which led to the breakdown of labor negotiations at the end of last year. The union does not rule out holding a Spring Festival strike vote on January 6.
Chen Guoxun, chairman of the Taoqin Labor Union, said that the six major demands include adjusting the night allowance from NT$50 (NT$, the same below) to NT$75, raising the salary level, increasing the salary by 4%, redefining the salary structure, increasing the current allowance, proposing a ten-year regular promotion and improvement plan for employee grades, and exploring the relationship between the promotion system and employee turnover.
Qiu Yucheng, director of the Taoqin Labor Union, said that due to the impact of the epidemic in recent years, the employer has used the sluggish aviation industry as an excuse to force employees to swallow it. Many employees have resigned without seeing the future, and the workload of the remaining manpower has increased. In addition, Taoqin Enterprises The industrial union has not adjusted its league association since 2000, and has to fight every year to fight for a reasonable year-end. This year, including year-end, salary adjustments, incentive bonuses, etc., have not yet been negotiated. Therefore, they have put forward six major demands, hoping that the company will at least take a step toward communication.
Qiu Yucheng said that due to the breakdown of labor negotiations at the end of last year, the union will hold another labor negotiation at Taoqin Company on January 4. If it fails, it will protest at the "Ministry of Transportation" on January 6 and convene an extraordinary member representative meeting to vote on strike. If more than half of the members agree, it will go on strike during the Spring Festival.
Taoyuan Airlines responded that management has listened to employees and opened the door to communication and coordination. Affected by the epidemic, although the company suffered serious losses last year, it still actively negotiated with the labor union and scheduled another labor negotiation on January 4 in the hope of reaching a specific consensus.
The Taoyuan City Labor Bureau said that according to regulations, a strike must be approved by a strike vote to be considered a legal strike. Although mediation has not been established, it has not yet entered a strike vote and will work hard to facilitate continued negotiations between labor and management.