The Blackstone Group has offered to acquire Pactera Technology International Ltd. (Nasdaq: PACT), a China-based provider of global consulting and technology services, for approximately $680 million, or $7.50 per share (43% premium to Friday’s closing price). Significant Pactera shareholders include GGV Capital (7% stake). www.pactera.com
The O’Gara Group, a Cincinnati-based provider of global security and defense products and services for use in counter-terrorism, has acquired the armored vehicle and transparent armor businesses ofBAE Systems (LSE: BA). No financial terms were disclosed, except that Monroe Capital provided an equity co-investment and a subordinated debt facility to support the deal. Other O’Gara shareholders include Hauser Private Equity and The Walnut Group. www.ogaragroup.com
Rockwood Holdings Inc. (NYSE: ROC) has received interest from several private equity firms for its pigments business, which may be valued at upwards of $2 billion, according to Reuters. Suitors include Advent International, Bain Capital, Apollo Global Management, Golden Gate Capital, Blackstone Group and Rhone Group. www.rockwoodspecialties.com
TowerBrook Capital Partners has acquired a majority stake in French retailer Kaporal 5 from MBO Partenaires. No financial terms were disclosed. www.kaporal.com
KPS Capital Partners has agreed to acquire the specialty paper business of Wausau Paper (NYSE: WPP). The deal includes $110 million of cash proceeds (minus liabilities) to Wausau, while Wausau will retain defined benefit pension and other post-retirement benefit obligations (minus $41m of future liability, which is being eliminated). There also are possible performance-based milestone payments equivalent to a 5% equity stake. The business will be renamed Expera Specialty Solutions LLC. www.wausawpaper.com
Sign up for Dan’s daily email newsletter on deals and deal-makers: GetTermSheet.com
