The royal couple are aiming to improve ethnic minority representation, reports have shown.
The foundation’s board consists of 10 people, and last year, Zeinab Badawi, a Sudanese-British BBC journalist, was appointed as a trustee.
Recently, Ron Kalifa, a former Worldpay chief executive, joined the board.
In June, Buckingham Palace admitted its failings and increased efforts to improve diversity.
The Sovereign Grant report showed only 8.5 percent of Palace employees are from an ethnic minority background.
Palace aides have said they hope to increase diversity to 10 percent by the end of the year.
A senior palace source acknowledged it “must do more” to improve diversity.
“We are not where we would like to be despite our efforts,” the source told the Telegraph.
Meanwhile, Clarence House revealed that only 8 percent of its staff comes from ethnic minority backgrounds.
The royal house admitted it was “not where we need to be”.
According to a 2011 UK census, 14 percent of the population in England and Wales is non-white.
Source: EXPRESS CO UK