信用证业务下权利抗辩具有“须主张性”的原因,不仅仅在于权利抗辩的权利属性,还在于权利抗辩效力的产生未必能给权利人带来益处。近年爆发的信用证纠纷案件中有三起比较典型:青岛凯扬进出口集团有限公司v.H银行(以下简称“青岛凯扬案”),China New Era International Ltd.v.B银行(以下简称“中国新时代案”)以及Swiss Singapore Overseas The reasons for the right defenses under the credit business are not only because of the right attributes of the right defenses but also because the effectiveness of the right defenses is not necessarily beneficial to the right owners. In recent years, there are three typical cases of credit dispute broke out: China Merchants Bank Co., Ltd. vH Bank (hereinafter referred to as “Qingdao Kay Young Case”), China New Era International Ltd.vB Bank (hereinafter referred to as “China New Age Case ”) and Swiss Singapore Overseas