Exhibit 10.39 January 28, 2002 Brian W. Metcalf, Ph.D. 297 Lakeview Place Moraga, CA 94556 Dear Brian: This letter sets forth the agreement (the "Agreement") that Kosan Biosciences, Inc. (the "Company") is offering to you to aid in your employment...Employment Agreement • March 29th, 2002 • Kosan Biosciences Inc • Services-commercial physical & biological research • California
Contract Type FiledMarch 29th, 2002 Company Industry Jurisdiction