Reported cases of modern day slavery in Wales in the last year has more than doubled.
Welsh Government statistics show there were 193 referrals of potential victims of slavery - a 56% rise.
The chair of UNISON Black Members Group says unions can help with recognising the signs of exploitation.
referrals of potential victims of slavery
It could be the woman trapped in servitude or trafficked into the sex trade, the man forced in labour or the child who has been trafficked by criminal gangs and suffered horrendous abuse. Trade unions have a major role in the fight against modern slavery, With 100,000 members in Wales, UNISON can help educate our members and the wider community in recognising the signs of exploitation. The Welsh Government's code of practice for ethical employment in supply chains provides an opportunity for unions to work with employers to ensure workers are treated fairly and no-one is exploited.
The Health Secretary, Vaughan Gething AM, has recorded a special video address for the UNISON Cymru Wales event in Butetown to mark International Day for the Remembrance of the Slave Trade and its Abolition.
Stephen Chapman, the Welsh Government's Anti-Human Trafficking Co-ordinator will also be speaking at the event.