$普拉格能源(PLUG)$ 8-K - Current report Filed: 2016-06-30 AccNo: 0001104659-16-130292 Size: 1 MBItem 1.01: Entry into a Material Definitive AgreementItem 1.02: Termination of a Material Definitive AgreementItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balanc 网页链接