Sony’s quarterly profit topped analyst expectations thanks to strong sales of PlayStation games and growth in its music business, which also benefited from a one-time gain on share sales of Spotify Technology.

The slowdown in the global smartphone market is starting to take a toll on Samsung Electronics, with net income falling short of analysts’ estimates as the sluggish market hit demand for its Galaxy devices.

Protests at some South African power stations amid deadlocked wage talks are stopping coal from getting to plants and threaten to force the country’s electricity provider to implement rolling blackouts.