third party claimant meaning in English

参加诉讼人

Written claim from third party claimant claim substantiation documents as appropriate other relevant documents
第三方索赔人的书面索赔函及索赔证明材料
Please be advised that it is most important that you do not admit liability or offer any payment to the third party claimant , or abandon the right of recovery from responsible third party
为保障阁下之利益，未经本公司认可，请勿向第三方承认责任或给予赔偿，否则将影响保单项下索赔的权力