Lakewood-based KRTL Holding Group Inc. (OTC: KRTL) announced that its subsidiary, KRTL Biotech Inc., has successfully registered Industria Químico Farmaceutica SIGMA CORP. S.R.L. (SIGMACORP) with the U.S. Food and Drug Administration (FDA) as a U.S. pharmaceutical manufacturer. As the U.S. Registered Agent for SIGMACORP, KRTL Biotech is facilitating international pharmaceutical integration and diversifying the U.S….