Paul Boltz Jr., managing partner of Ropes & Gray’s Hong Kong office, is leaving the firm with three other partners for Gibson, Dunn & Crutcher.

Corporate partners Brian Schwarzwalder and Michael Nicklin, along with private equity partner Scott Jalowayski, are joining Boltz in the move to Gibson Dunn. According to a source familiar with the matter, a number of associates are also set to leave Ropes & Gray with the departing partners.

Gibson Dunn chairman and managing partner Kenneth Doran said in a statement that the new hires will complement and broaden the firm’s Asia offering, which now includes anticorruption and compliance, arbitration and dispute resolution, corporate, energy and projects work.

Jalowayski, Schwarzwalder and Boltz all joined Ropes & Gray from Morrison & Foerster. Jalowayski and Schwarzwalder both made their move in 2008 when they opened a Hong Kong office for the Boston-based Am Law 100 firm, while Boltz joined the following year. Nicklin arrived at Ropes & Gray in 2011 from Weil, Gotshal & Manges, where he was a London partner.

The departures from Ropes & Gray in Hong Kong follow that of former disputes partner Patrick Sinclair last week. Sinclair joined Davis Polk & Wardwell this week to expand the firm’s U.S. law government enforcement and investigations practice. Earlier this year, funds partner Geoffrey Chan left Ropes & Gray to launch an Asia funds practice for Skadden, Arps, Slate, Meagher & Flom.

In an unrelated move, it emerged earlier this year that around 100 lawyers and staff are poised to leave Ropes & Gray within the next few months, as the firm prepares to spin off its patent prosecution practice into an independent entity. The move by Ropes & Gray represents a major restructuring of its intellectual property practice, the bulk of which stems from its 2004 acquisition of 160-lawyer IP boutique Fish & Neave.

Joseph Guiliano, co-head of Ropes & Gray’s IP rights management practice in New York, will lead the as-yet-unnamed new firm.