After the World War I the extensive investments in technology were implemented, however, during the World War II the major part of devices was destroyed. By repairs of devices destroyed by war there was clear, that the sugar factory already finished it's days and there was necessary to increase it's capacity, because of the fact, that from 13 sugar factories built before the World War I in Silesia remained only one in Opava-Vávrovice. Therefore in 1949 the work on the new sugar factory started. 

 The first sugar beet season in the new sugar factory started in 1953 with capacity standard of processing 1 000 tons of sugar beet per day. The sugar factory became a part of the national enterprise Slezské cukrovary (Silesian Sugar Factories).  The sugar factory has undergone gradually the various organisational changes and was re - constructed continually. In 1989 it was one of nine works of Severomoravské cukrovary s.p.(North - moravian Sugar Factories, state enterprise) and processed  2 050 tons of sugar beet per day.

 
In 1992 was established the joint stock company 1. Slezská (1st Silesian). In this time period the re - construction of diffusion and other devices to higher capacity was implemented.

In November 1998, when the sugar factory obtained the Austrian company Agrana, the processing of sugar beet was ca. 3000 tons per day. In the sugar beet season 2000 the sugar factory in Opava  processed in average 3150 tons of sugar beet per day.

 The General Assembly of the joint stock company in 1999 agreed the project of merger with the Cukrovar Hrušovany nad Jevišovkou, a.s.  and Cukrovar Uničov, a.s. From January 1st, 2 001these sugar factories act under the joint name Moravskoslezské cukrovary a.s.