Complex sentence: Given the importance of the port to the national economy, and previously poor facilities of the port, it has been subject to much investment in the 2010s, to facilitate the growth of the mining industry in the country, with the exportation of bauxite.
Split into simpler sentences: Given the importance of the port to the national economy, and the previously poor facilities of the port, a great deal of investment occurred in the 2010s. This facilitated the growth of the mining industry in the country, with the exportation of bauxite.