Silver Elephant Mining (SILEF) 6-K Prophecy Appoints Marc Leduc as Independent Director

 Exhibit 99.1

BC FORM 51-102F3

MATERIAL CHANGE REPORT

UNDER SUBSECTION 7.1(1) OF NATIONAL INSTRUMENT 51-102

ITEM 1.

NAME AND ADDRESS OF COMPANY

Prophecy Development Corp.

Suite 1610 – 409 Granville Street

Vancouver, BC V6C 1T2

ITEM 2.

DATE OF MATERIAL CHANGE

July 23, 2019

ITEM 3.

NEWS RELEASE

The news release dated July 23, 2019 was disseminated through ACCESSWIRE Canada Ltd. and filed on SEDAR on July 23, 2019.

ITEM 4.

SUMMARY OF MATERIAL CHANGE

Prophecy Development Corp. (the “Company”) announced the appointment of Marc Leduc, P.Eng. as the Company’s Director of the board, effective July 22, 2019.

ITEM 5.

FULL DESCRIPTION OF MATERIAL CHANGE

Please see the news release dated July 23, 2019, which is available for review under the Company’s SEDAR profile at www.SEDAR.com.

ITEM 6.

RELIANCE ON SUBSECTION 7.1(2) OR 7.1(3) OF NATIONAL INSTRUMENT 51-102

Not applicable.

ITEM 7.

OMITTED INFORMATION

None.

ITEM 8.

SENIOR OFFICER

Contact:

Rocio Echegaray, Corporate Secretary

Telephone:

(604) 569-3661

Email:

rechegaray@prophecydev.com

ITEM 9.

DATE OF REPORT

July 23, 2019