First Solar, Inc. revised earnings guidance for the year 2021. The company expected net sales of $2.875 billion to $3.1 billion compared to previous guidance of $2.85 billion to $3.025 billion. Operating income of $545 million to $625 million compared to previous guidance of $545 million to $640 million. EPS of $4.00 to $4.60 compared to previous guidance of $4.05 to $4.75.