Legal analysis: if the employer provides special training fees and professional technical training for the workers, it may conclude an agreement with the workers to stipulate the service period. If the laborer violates the service period agreement, he shall pay liquidated damages to the employer in accordance with the agreement. The amount of liquidated damages shall not exceed the training expenses provided by the employer. The liquidated damages that the employer requires the workers to pay shall not exceed the training expenses that should be shared for the unfinished part of the service period. If there is compensation for the unit that requires the confidentiality of industry competition, the parties concerned shall abide by the relevant requirements after leaving the company, and if they breach the contract, they shall also compensate the unit.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 577 Where a party fails to perform its contractual obligations or fails to perform its contractual obligations in conformity with the contract, it shall be liable for breach of contract such as continuing to perform, taking remedial measures or compensating for losses.

Article 578 Where a party expressly expresses or shows by his own behavior that he will not perform his contractual obligations, the other party may require him to bear the liability for breach of contract before the time limit for performance expires.

Article 579 If one party fails to pay the price, remuneration, rent or interest, or fails to perform other monetary obligations, the other party may demand payment.

Article 584 Where a party fails to perform its contractual obligations or fails to perform its contractual obligations in conformity with the contract, thus causing losses to the other party, the amount of damages shall be equivalent to the losses caused by the breach of the contract, including the benefits that can be obtained after the performance of the contract; However, it shall not exceed the losses that the breaching party foresaw or should have foreseen when concluding the contract.