Warning of Grovest poor performance

I made venture capital investment with Grovest in 2019. The prospectus stated "Clear exit strategy through sale of underlying assets to Independent Power Producer or listing of GEL". Even after five years there is no exit option. The capital value has decreased. Dividends received is way below the inflation rate. Even Grovest does not want to buy-back shares - no investor would want to purchase under-performing shares - so I remain stuck indefinitely.