Chitsanzo: Silence / Top / Mbali Mtundu
Chitsimikizo: ISO9000, CE, SGS
Ntchito:
Mining: Mining, Second-time breaking
Metallurgy: Kuchotsa slag, Kuwononga ng'anjo ndi maziko
Msewu: Kukonza, Kuphwanya, Ntchito Yoyambira (msewu wa asphalt)
Railway: Tunneling, Kuwonongeka kwa mlatho
Kumanga: -Kuwonongeka kwa nyumba ndi konkriti yolimba
Kukonza Sitimayo: Kuchotsa clam ndi dzimbiri pachombocho
Zina: Kuphwanya matope oundana