EXHIBIT 99.1
This statement on Form 4 is filed jointly by each of the undersigned. The principal business address of each of these reporting persons is c/o South Mountain Merger Corp., 767 Fifth Avenue, Ninth Floor, New York, NY 10153
Name of Designated Filer: South Mountain Merger Corp.
Date of Event Requiring Statement: August 5, 2019
Issuer Name: South Mountain Merger Corp. [SMMC]
| | SOUTH MOUNTAIN LLC | |
| | | | | |
| | By: Harbour Reach Holdings LLC, its Managing Member | |
| | | | | |
| | By: Netherton Investments Limited | |
| | | | | |
| | By: | /s/ Robert Heaselgrave | |
| | | Name: | Robert Heaselgrave | |
| | | Title: | Director | |
| | | | | |
| | HARBOUR REACH HOLDINGS LLC | |
| | | | | |
| | By: Netherton Investments Limited | |
| | | | | |
| | By: | /s/ Robert Heaselgrave | |
| | | Name: | Robert Heaselgrave | |
| | | Title: | Director | |
| | | | | |
| | NETHERTON INVESTMENTS LIMITED | |
| | | | | |
| | By: | /s/ Robert Heaselgrave | |
| | | Name: | Robert Heaselgrave | |
| | | Title: | Director | |
| | | | | |
| | NETHERTON HOLDINGS LIMITED | |
| | | | | |
| | By: | /s/ Robert Heaselgrave | |
| | | Name: | Robert Heaselgrave | |
| | | Title: | Director | |
| | | | | |
| | /s/ Steven Pariente, Attorney-in-Fact for Michael E. Platt | |
| | Michael E. Platt | |
