 LEUVEN, Belgium--BUSINESS WIRE--- MTLS earnings--Materialise NV NASDAQ:MTLS, a leading provider of additive manufacturing and medical software and of sophisticated 3D printing services, today announced its financial results for the second quarter ended June 30, 2021. Highlights Second Quarter 2021 Total revenue increased 33 to 50,713 kEUR for the second quarter of 2021 from 38,117 kEUR for the 2020 period. Total deferred revenues from annual software sales and maintenance fees increased 1,725 kEUR to 31, 