Usually this would be by the general contractor having a financial interest in the subcontractor, but it could be by other means, such as a family relationship.
Diprovinsing tse ngata Afrika Borwa, ka ho tlwaelehileng morekisi o kgetha motsamaisi (conveyancer) bakeng sa tshebetso ya thepa ya hae, le hoja sena, jwaloka dikarolong tse ding tsa tumellano ya thekiso, sena se ka fapana ka lebaka la tumellano pakeng tsa dihlopha tse pedi tse amehang.