At the 90-year-old Zavallivsky Graphite Mine in central Ukraine, CEO Ostap Kostyuk dreams of making graphite pure enough to ...
Marta Kostyuk took advantage of Coco Gauff’s uneven performance Tuesday in Doha to capture her biggest hard-court win to date.
At the Zavallivsky Graphite Mine in Ukraine, CEO Ostap Kostyuk aims to produce graphite pure enough for lithium batteries.
American Amanda Anisimova outlasted Ukrainian Marta Kostyuk in a very physical, high-quality three-set quarterfinal at the ...
Ekaterina Alexandrova equalled her career-best winning streak and reached her third WTA 1000 semifinal with a three-set ...
As U.S. President Donald Trump eyes a major deal on Ukraine's rare earths and critical minerals in return for Washington's ...
Ekaterina Alexandrova of Russia on Tuesday survived a late onslaught to beat top seed and world No 1 Aryna Sabalenka of ...
Marta Kostyuk improved to 2-0 against Magda Linette with a straight-sets win in the Qatar TotalEnergies Open third round, advancing to her third quarterfinal at WTA 1000 level or above.