Nneɛma a wɔyɛ no foforo a wɔde yɛ nneɛma a wɔde siesie nneɛma .

Afiri a wɔde horo nneɛma a wɔde ntwahonan yɛ no fa ntwahonan a wɔde kanyan nneɛma so de kanyan efĩ a ɛwɔ ade no mu na woyi fi hɔ na ama anhwea a wɔde hohoro nneɛma no ayɛ papa.

Esiane sɛ ɛwɔ nhyehyɛe a wotumi sesa mu na ahoɔden a wɔde di dwuma no sua nti, yɛn afiri a wɔde horo nneɛma a wɔde ntwahonan no hohoro mu no ye ma  nneɛma a wɔde di dwuma  te sɛ adansi, mining, ne kɔnkrit a wɔyɛ.

Afiri a wɔde horo nneɛma a ɛwɔ ntwahonan so .

1. Nteaseɛ a ɛwɔ mu ne nsiesie a ɛyɛ mmerɛw.

2. Nneɛma a wɔde yɛ adwuma kɛse, tumi a wɔde di dwuma ketewaa bi.

3. Ahotew a ɛkorɔn, nneɛma a wɔahohoro ho a ɛyera kakraa bi.

4. Sɛ wode anyinam ahoɔden drive, adwumayɛ a ɛyɛ den, ne dede a ɛba fam di dwuma a.