HK, GSK lovaza is supposed to contain at least 840 mg of EPA/DHA, but lovaza's MSDS said it contains 70% of EPA/DHA. I do not think GSK is lying. If 840 mg is 70%, then it is the percentage of whole product, not contents.
If the weight of Hikma's Vascepa is also 1.5 g, and 60-80% of whole product is EPA, it contains 900-1200 mg of EPA. It makes sense more.