CBH's new direct to vessel service has been well received with high demand from growers wanting to take part.
The service was launched this year and involves growers nominating a specified grain type and grade to a vessel as opportunities become available.
They are required to deliver grain to port within the 14 days prior to the exporter's vessel arriving at port.
Under the scheme, growers are eligible for a $3.80 per tonne receival fee rebate and exporters for a $3.50/t rebate, which takes the total estimated cost for export through this service down to $23.20/t for wheat, compared to $30.50/t for CBH's integrated service.
CBH is offering direct to vessel opportunities for ASW1 wheat at the Esperance port and genetically modified canola, non-GM canola and APW1 wheat at Geraldton port.
Since nominations for the service opened in October more than 110 growers across the Geraldton and Esperance zones have nominated through CBH marketing and trading to deliver direct to vessel.
CBH general manager of marketing and trading Jason Craig said growers had reacted positively to the new initiative.
"The enthusiasm for the new service, which was only introduced this year, has resulted in three vessels reaching capacity before the closing date," Mr Craig said.
"This service allows growers and marketers to maximise the returns for their grain, which is proving to be popular as we get into harvest.
"We are looking at our shipping schedules for opportunities in other port zones, which will be communicated to growers as soon as these become available."
CBH general manager of operations David Capper said the service demonstrated benefits which could come from the efficient use of the supply chain.
"This service offers a 24 per cent saving on standard supply chain costs, which only comes through collaboration," Mr Capper said.
"The direct to vessel product was designed to encourage more harvest shipping by exporters and reward growers who sell, deliver and nominate their grain to facilitate the loading of those vessels.
"Competitiveness is increasingly important and rewarding growers for supplying direct to a vessel is just one way in which we're able to lower supply chain costs."