Del. Code tit. 6, §§ 18-906

A foreign limited liability company may cancel its registration by filing with the Secretary of State a certificate of cancellation, executed by an authorized person, together with a fee as set forth in § 18-1105(a)(6) of this title. The registration of a foreign limited liability company shall be canceled as provided in §§ 18-104(i)(4), 18-904(e) and 18-1107(h) of this title. A cancellation does not terminate the authority of the Secretary of State to accept service of process on the foreign limited liability company with respect to causes of action arising out of the doing of business in the State of Delaware.