During the 1970's the continued dismantling of Hakalau included closure of Hakalau School and shutting down Hakalau Mill after 92 years of operation. Further consolidation of operations among formerly independent plantations was needed to improve efficiency and enable modernization to address issues of aging infrastructure and the need to comply with new environmental regulations.
- In 1971 Wainaku, Hakalau, Pepeekeo, and Papaikou sugar companies were consolidated in a processing cooperative that also included independent cane growers. Under C. Brewer’s ownership the sugar companies combined with hundreds of independent sugar growers to create the Hilo Coast Processing Company which processed all of the sugar cane for their plantations as well as used a by-product, bagasse, to create 25% of the electric power for the island of Hawaii. These companies were later consolidated into the C. Brewer Company. The company switched to coal after the plantation quit growing cane in 1994. (Source: Hawaii Sugar Planters' Association Archives for the Hilo Coast Processing Company)
- Pepe‘eke‘ō Sugar merged with Mauna Kea Sugar to form Mauna Kea Sugar Co., Inc. (including Pepe‘eke‘ō, Onomea, Papikou, Wainaku), the state’s fourth largest sugar company with 18,000 acres of cane. (Source: Hawaii Sugar Planters' Association Archives for the Hilo Coast Processing Company)
The company (C. Brewer) is in disarray, its three top officers resign at the same time and the new President, J.W.A. carves a "leaner" company by selling off marginal operations.(Source: The Story of C. Brewer and Company, Limited, Scott C.S. Stone, Island Heritage Publishing, 1991, pp. 224-225.)
By 1976, C. Brewer's 150th year, there is no longer talk of liquidation [of C. Brewer], and Buyers had led the company into focusing on the best use of the land...(Source:The Story of C. Brewer and Company, Limited, Scott C.S. Stone, Island Heritage Publishing, 1991, p. 225.)
The company (C. Brewer) is a wholly-owned subsidiary of International Utilities Corporation (IU) and begins to contribute 59 percent of IU's net income on revenues that are one tenth of IU's total. (Source: The Story of C. Brewer and Company, Limited, Scott C.S. Stone, Island Heritage Publishing, 1991, p. 225.)