Huduma za
- Chuma-plastiki kujitenga na huduma ahueni
- Feri, chuma ahueni huduma
- Aluminium ahueni
- Shaba ahueni
- Shaba ahueni
- Nickel ahueni
- Zebaki ahueni
- Platinum, dhahabu na fedha kufufua huduma
- Zinki ahueni
- Kufufua na kuchakata makandarasi, viwanda chuma taka
- Waya kusindika huduma