"The youths, now reunited with their families on March 15, had been exploited by traffickers on farms in Ghana's Volta Region after being brought to the country by traffickers."
"The youths -- all boys aged nine to 19 -- were brought to Ghana from Cote d'Ivoire and Burkina Faso under the pretext of studying Quran. An Imam allegedly exploited the children as farm workers, some for up to ten years according to Ghanaian authorities. Exact timelines are difficult to trace, as children as young as three were trafficked and they do not know the day, month or year they came to Ghana."
Castration isn't very common. But slavery is at an all time high. By far the largest number of "slaves" are boys used for labour. It isn't just in Africa or the middle east either.
A father of a kidnapped boy from India took matters into his own hands. Even though he was a blue coller guy without a lot of money. He was able to track his son to a factory in Nepal. He traveled there, raided the place, and rescued 18 boys, all from India. I read about this over a decade ago during one of my deep dives. I have forgotten where I read it or else I would have provided a link. I think the Indian media covered the story.