HUTCHINSON , Kan. — The next quarterly earnings session kicks off with Alcoa releasing its third quarter numbers before the bell Tuesday with many questions of how the iconic aluminum makers bet to split in two will pay off.

Klaus Kleinfeld, who has led the company since 2008, is separating the company’s beleaguered raw aluminum operation on Nov. 1 in a bid to increase the combined value of the spinoff. That means come Nov. 1, the Alcoa finishing plant here in Hutchinson will become Arconic. Arconic will house the company’s fast-growing businesses supplying the aerospace and automotive markets.

Arconic could be the upside of the split as the aerospace-related businesses have signed around $15 billion worth of supply deals with companies including Boeing, Airbus, and Lockheed Martin Corp.

Arconic will also take over a lucrative business selling sheet aluminum to Ford Motor Co. for its F-150 pickup truck. However, other automakers have yet to make similar high-profile announcements of converting their vehicles full-bore to the lighter aluminum.

After Alcoa, Union Pacific will release its third quarter earnings Oct. 20.