Efforts
Assistance
noun, verbal noun
If you exhaust power you are putting out efforts.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
トーフグの社長として、コウイチはサービスの向上に尽力致します。
As the president of Tofugu, Koichi does his utmost to improve the service.