Three industries:
1: Oil, gas and biofuels (e.g. Petrobras, Cosan SA, Petro Rio SA, Vibra Energia SA)
2: Mining industry (such as Vale, CSN Mineracao SA, Bradespar SA Preference Shares)
3: Electricity (e.g. Eletrobras, CPFL Energia SA, Engie Brasil Energia SA, Equatorial Energia SA)
please use these points from following pdf
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