Defender Erik Brannstrom scored twice as Sweden overthrew Finland 2-1 in a round-robin Group B.
Brannstrom opened the scoring in the first period and secured the victory by stepping into the timer at the top of the circle in the power 5-on-3 game at 3:55 a second.
Samuel Ersson made 29 saves for Sweden (1-0-0) in his tournament debut.
Ukko-Pekka Lukkonen is guarding Finland (0-1-0) with 28 stops. Aarne Talvittie made a closeness to the power-play goal with 3:34 to play in third.