发生劳动争议，如何申请调解？

Group 1 - The basic procedure for handling labor disputes in China is "Negotiation - Mediation - Arbitration - Litigation" [2] - Workers can first negotiate with employers, and if an agreement is reached, a settlement agreement can be signed [2] - If negotiation fails, workers can apply for mediation or arbitration at the relevant labor dispute arbitration committee [2][3] Group 2 - Arbitration is mandatory before filing a lawsuit; parties can voluntarily choose whether to go through negotiation or mediation [3] - Mediation involves persuading both parties to reach a voluntary agreement through a mediation organization [3][4] - There are three main types of mediation organizations: enterprise labor dispute mediation committees, grassroots people's mediation organizations, and local mediation organizations [4] Group 3 - Parties can submit mediation applications in person or through the national online labor dispute mediation service platform [5] - If mediation is unsuccessful or the other party does not comply with the mediation agreement, arbitration can be applied for [5]