$海科控股(CKH)$ 8-K - Current report Filed: 2018-05-09 AccNo: 0001437749-18-009120 Size: 45 KBItem 1.01: Entry into a Material Definitive AgreementItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a RegistrantItem 3.02: Unregister 网页链接