8. Long-term receivable
 
  Group Company
  2022
R '000
2021
R '000
2022
R '000
2021
R '000
Receivable at fair value — Clover Alloys 38,663 13,444 — —

In 2017 the Venture entered into an asset swap arrangement with Lanxess Chrome Mine (Pty) Ltd (Lanxess) through which the Venture's mineral rights were swopped for Lanxess' mineral rights. Lanxess sold its interest to Clover Alloys South Africa (Pty) Ltd in 2020. The resultant receivable arises as payment for the Venture's mineral rights is through ore recovery and sale from mining in the rights area which is expected to be concluded in 2032. No ECLs were recognised for this receivable as the debtor is revalued at each reporting period based on the latest mining plans and probabilities and measured at its fair value, based on the inputs and forward-looking commodity prices.

The following key assumptions were used in the calculation of the discounted cash flow model (10 years) at the reporting date:

  Units of
Measure
2022 2021
Discount rate % 9.70 % 9.70 %
Average exchange rate — real ZAR/USD 15.67 14.90
Chrome Ore LG6 Met Grade $/oz 197.88 197.88