Apple, Samsung, and Huawei have all developed custom chipsets over the years. This has allowed them to reduce dependence on companies such as Qualcomm and MediaTek, and now three other smartphone brands could follow in these footsteps.

According to a new report by CNBeta, Oppo executives recently circulated an internal memo that reveals plans for a so-called “Mariana Plan.” The latter is apparently a nod to the world’s deepest ocean trench and details the company’s work on future in-house chipsets.