This document reports the findings from the techno-economic and sustainability assessment done in the project Circular cellulose to textile fiber production. The aim of the project has been to develop resource efficient processes for alternative cellulose feedstocks from residual streams to increase value for dissolving pulp, for e.g., textile fiber production. In this report, a techno-economic feasibility study and an environmental impact assessment were done to give an indication of the market relevance and climate impact of wheat straw and oat husk as raw materials for the production of dissolving pulp.