June 22 (Reuters) - Braskem SA:
* Braskem SA says board formally approved final investment decision to proceed with polypropylene production line in americas
* Braskem SA says will commit up to $675 million in investment capital towards design and construction of new facility which will be named Delta
* Braskem SA says new facility which will be named delta, will be located next to Braskem's existing production facilities in la porte, Texas, U.S.
* Braskem SA says new facility construction is expected to begin mid-summer, with final phase of main construction targeted for q1 of 2020 Source text for Eikon: Further company coverage: