Supplement to the

Chemicals Portfolio

April 29, 2023

Summary Prospectus

The following information replaces similar information found in the "Fund Summary" section under the "Portfolio Manager(s)" heading.

David Wagner (Co-Portfolio Manager) has managed the fund since 2019.

Emma Baumgartner (Co-Portfolio Manager) has managed the fund since 2023.

CHE-SUSTK-0723-101 1.9880372.101 July 31, 2023