Tokyo, May 23 (Jiji Press) — Japanese low-cost smartphone service operators have joined moves to postpone the sale of new smartphone models made by China’s Huawei Technologies Co.

The postponement may have adverse effects on the performances of these operators, which had pinned hopes on the smartphones by the Chinese telecommunications equipment maker.

On Thursday, Optage Inc., which provides the “mineo” smartphone service, Internet Initiative Japan Inc., the operator of the “IIJmio” smartphone service, and Line Mobile Corp. said they will put off the release of Huawei P30 and P30 lite smartphone models.

Optage said it will confirm whether it can sell Huawei products without a problem. Line Mobile said it will postpone the launch of Huawei smartphones until it confirms that users can use them without worry.

On Wednesday, mobile carriers KDDI Corp. and Softbank Corp. said they will delay the release of new Huawei smartphones due to concerns over possible effects on Huawei products from U.S. sanctions against the Chinese maker.