CARBO Ceramics Inc. and PicOnyx Inc. announced that they have executed the definitive agreements that will govern their previously announced strategic partnership for the production of M-Tone. An innovative family of unique, high performance black pigments, M-Tone addresses customer needs for black pigments with higher performance and greater functionality that are more environmentally friendly than other available alternatives. Under the terms of the definitive agreements, CARBO will provide certain production assets and services to PicOnyx and will provide PicOnyx with significant manufacturing capacity, production capabilities and resources to support PicOnyx's aggressive growth plans for M-Tone. In exchange for its contributions and services, CARBO will obtain an equity stake in PicOnyx, and under the terms of a contract manufacturing agreement, CARBO will produce M-Tone for PicOnyx on a cost-plus basis. The manufacturing operation, located in Louisiana, is expected to be operational in the fourth quarter of 2019 and will be capable of supporting PicOnyx's expected production needs for the next several years.