The rapid growth of sub-contracting in south African mines has been virtual
ly ignored to date in the mainstream research literature on mining and migr
ant labour. In part, this is a result of the tunnel vision of researchers;
and in part it is because of the difficulties of research and access to the
mines. This paper explores the growth and implications o sub-contracting i
n South African gold mines since 1990. It has three main objectives. The fi
rst is to document the dimensions and trends of sub-contracting operations
in the industry. Secondly, the veracity of claims about the negative impact
and implications of sub-contracting on the National Union of Mineworkers (
NUM) and the working conditions of black miners is tested. Thirdly, the pap
er explores the perceptions of sub-contracting by workers themselves, many
of whom are not, or are no longer, NUM members. Lesotho was chosen as the r
esearch field-site. A companion survey of ordinary miners in Lesotho in 199
7 allows systematic comparison between regular and sub-contract workers. As
this study shows, the conditions of employment under contractors are signi
ficantly worse than for regular miners. Sub-contracting has also been very
damaging to the NUM. It produces new tensions within the union, between reg
ular and sub-contract miners, and between union and ex-union members. Witho
ut a more informed understanding of what drives sub-contracting and an asse
ssment of the real need for sub-contracting companies, it is unlikely that
the NUM's attempts to regulate sub-contracting will bear fruit.