Cottage Industry (Korean: 가내 수공업; Hanja: 家內手工業) is the first EP album by South Korean duo M&D, released by SM Entertainment and distributed KT Music on April 20, 2015.

On March 17 a few reports have come out to reveal that SM Entertainment mentioned that M&D's releasing their first EP album Cottage Industry on April 20 with "I Wish" as its lead track.

Along with the already announced featuring of GFriend's Yerin, there were a number of other celebrities who made an appearances in it, such as Lee Jin Ho, Cho Jae Geol, Gun Hee, and Jang Dong-min.

This is the project duo's comeback after a 3-year and 10-month hiatus following the release of the single "Close Ur Mouth".

The release is an EP album with six tracks written by Heechul and composed by Jungmo.