0000927356-01-000171 S-1/A 18 20010202 IPG PHOTONICS CORP 0001111928 3674 043444218 DE S-1/A 33 333-51560 1524190 P O BOX 519 660 MAIN STREET STURBRIDGE MA 01566 5083476800 S-1/A 1 0001.txt AMENDMENT NO. 1 TO FORM S-1 EX-1.1 2 0002.txt FORM OF UNDERWRITING AGREEMENT EX-4.1 3 0003.txt SPECIMEN CERTIFICATE REPRESENTING THE COMMON STOCK EX-10.7 4 0004.txt EMPLOYMENT CONTRACT/IPG LASER & MANAGING DIRECTOR EX-10.8 5 0005.txt EMPLOYMENT AGREEMENT/REGISTRANT & VINCENT AU-YEUNG EX-10.11 6 0006.txt CONTRIBUTION AND EXCHANGE AGREEMENT EX-10.12 7 0007.txt PURCHASE AGREEMENT EX-10.13 8 0008.txt PURCHASE AGREEMENT EX-10.14 9 0009.txt LOAN AGREEMENT EX-10.15 10 0010.txt NON-COMPETITION AND CONFIRMATORY ASSIGNMENT EX-10.16 11 0011.txt EMPLOYMENT CONTRACT/IPG LASER & DR. SHCHERBAKOV EX-10.17 12 0012.txt AGREEMENT BETWEEN REGISTRANT AND ROBERT A. BLAIR EX-10.18 13 0013.txt PURCHASE AND SALES AGREEMENT DATED MAY 14, 1999 EX-10.19 14 0014.txt STOCK ISSUANCE AGREEMENT EX-10.20 15 0015.txt SERVICE AGREEMENT EX-23.2 16 0016.txt CONSENT OF DELOITTE & TOUCHE, GERMANY EX-23.3 17 0017.txt CONSENT OF DELOITTE & TOUCHE, U.S. EX-27.1 18 0018.txt FINANCIAL DATA SCHEDULE