Qualcomm is suing four Apple suppliers for breach of contract for refusing to pay royalties. The four Apple suppliers are Foxconn, Pegatron, Wistron and Compal.

Apple instructed the four manufacturers not to pay royalties. Apple and Qualcomm are in the midst of a patent fight. Apple claims that Qualcomm is abusing its dominant position and charges unreasonably high royalties. Qualcomm argues the opposite and says that Apple is abusing its position to force unfair license terms.

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