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About product and suppliers:
        Alibaba.com offers 8,443 portfolio case products. About 16% of these are file folder, 12% are briefcases, and 1% are messenger bags. 

A wide variety of portfolio case options are available to you, such as box file, document bag, and soft bag. You can also choose from pvc, pu, and leather. As well as from case, folder, and bag. And whether portfolio case is paid samples, or free samples. 

There are 8,421 portfolio case suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 97%, 1%, and 1% of portfolio case respectively. 

Portfolio case products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,565 with ISO9001, 729 with Other, and 162 with ISO14001 certification.