FRANKFURT, Sept 28 (Reuters) - Covestro is reviving a shelved major investment project to produce chemicals that go into insulation foams as demand for energy efficient construction is bolstering earnings in the third quarter and beyond.

Earnings before interest, taxes, depreciation and amortisation (EBITDA) in the June-to-September quarter would be around the upper end of a previous guidance range of 760 million to 860 million euros ($890 million to $1 billion), the German chemicals group said on Tuesday.

The group added it would revive a project for the construction of a plant making MDI chemicals for rigid foams to serve customers globally, which was suspended in early 2020. The site would be built in the United States or China with a planned production ramp-up in 2026, it said in a statement. ($1 = 0.8537 euros) (Reporting by Ludwig Burger Editing by Riham Alkousaa)