Wolves first broke through after 20 minutes, when Hwang buried Raul Jimenez's through ball, coolly beyond Karl Darlow.
Newcastle slip into the bottom three after a seventh league game without a win, while Wolves climb to 11th with back-to-back wins.
Formation change = no change
Newcastle opted to change from the usual five at the back formation for a 4-3-3. This, however, didn't really change anything for the Magpies, as the result did not change, nor did the attacking output or the defensive issues.
The point of playing a 4-3-3 is to allow your midfielders to overload in the forward areas creating more options in the area and allow width from your two wingers.
When you have wingers such as Saint-Maximin and Miguel Almiron, the point is to get them in behind and use full-back attacking options to create crossing opportunities.
After just over 30 minutes, Newcastle were overwhelmed in midfield and Steve Bruce abandoned the system. Newcastle have had a system that worked when Callum Wilson was fit. But since the striker has been out, Newcastle have looked lost and at sea.
Does Bruce now face the sack?
Steve Bruce has been under pressure since his first day. With Newcastle now winless in eight and finally facing fan pressure from the devoted Toon faithful.
Over the past 38 games, Newcastle have won just seven matches, and are out of the Carabao Cup. With seven favourable games, and The Magpies now have five games with increased difficulty: Chelsea, Tottenham, Crystal Palace, Brighton and Brentford.
With the international break now here, most will feel now it is the perfect time for a change of manager on Tyneside.