qiāndìng / hétong / shí / yǐfāng / xū / jiǎonà / hétong / jīné / bǎifēnzhīshí / de / lǚyuēbǎozhèngjīn签订合同时,乙方需缴纳合同金额百分之十的履约保证金。When signing the contract, Party B must pay a performance bond of ten percent of the contract amount.