Fernando Gonzalez said the firm could also sell 5 to 10 percent of its subsidiary Cemex Latam Holdings, and set aside half of its earnings from asset sales to lower its debt burden.
The company announced a plan last week to cut costs and sell assets to boost its finances and cut liabilities, in a bid to regain its investment grade rating.
Cemex has struggled with large debts and cost-cutting since former CEO Lorenzo Zambrano's ill-timed $16 billion takeover of Australian rival Rinker in 2007, when the US housing market was already months into a downturn.
Its credit rating was downgraded by Standard & Poor's and Fitch Ratings and now stands at B-plus, which is four notches below investment grade.
Gonzalez also said the company could reach an EBITDA target of $4.7 billion in 2018, adding that he sees a rise of 10 to 12 percent in the price of its products in the United States.